Cannabidiol and Phytocannabinoids in Dermatitis Treatment
CBD and related cannabinoids have been studied for dermatitis, almost always atopic dermatitis, and almost always as a cream, and on the skin the human evidence is a few small trials, mostly without a control group. Anything that reaches the blood, such as oils, edibles, capsules or patches, passes through the liver, can change levels of other medicines and may cause drowsiness, while smoke and vapor do nothing for the skin itself.
Built on peer-reviewed research published from 1983 to 2026: trials in people, research reviews, and animal and laboratory studies
When dermatitis won’t settle: itch, sleep and flare-ups
Most people expect a rash to be a skin problem. What wears them down is everything around it: the nights, the creams, the clothes they choose so nobody sees their arms. Dermatitis rarely stays gone for good, and every flare brings the same questions back.
The itch that wakes you up
Itch tends to get worse in the evening and at night, when there is nothing else to think about. People scratch in their sleep and wake up with raw patches, blood on the sheets and a foggy head. Scratching breaks the skin barrier, a broken barrier itches more, and the itch-scratch cycle feeds itself. For many adults and for parents of small children, lost sleep is the hardest part of the disease.
Flares that come back
Skin clears, and you start to believe it is over. Then a cold snap, a stressful month, a new soap or a sweaty summer brings it back in the same places. Living from one flare to the next is exhausting, and it makes any promise of a “permanent fix” very tempting.
Tired of creams
Many people have used steroid creams on and off for years and worry about thinning skin or about the skin “getting used to them.” Used as prescribed, these creams are safe and effective for most people [1]; the worry itself is real and is worth raising with the doctor, rather than solved by quietly stopping the cream.
Skin other people can see
A rash on the hands, face or neck is hard to hide. People notice it at work, ask whether it is contagious and step back. Shame is part of dermatitis for many patients, even though the condition is not catching and not caused by poor hygiene.
What bothers you most right now?
Pick one to see where this page answers it.
Itch at night: cool, moisturized skin, short nails and a steady daily routine matter more than any single product; prescription options for itch are covered in standard care. Cannabinoid research on itch so far comes mostly from cells and animals: see what lab studies suggest.
Flares that come back: dermatitis is usually controlled rather than cured, and knowing your triggers shortens flares. Start with how long dermatitis lasts and common triggers.
Steroid creams: there are non-steroid prescription creams and other steps between a cream and stronger treatment: see the ladder of standard care. Do not stop a prescribed cream to try a cannabis product.
Skin others can see: dermatitis is not contagious. The short answer is in can dermatitis spread. What creams with CBD did on visible skin in small trials is in can cannabis or CBD help.
What is dermatitis?
Dermatitis is the medical word for inflamed skin. It usually shows up as an itchy rash on dry, red or darker-than-usual, swollen skin that may blister, ooze, crust or flake. It is not a single disease but a family of conditions; atopic dermatitis (the most common form of eczema), contact dermatitis and seborrheic dermatitis are the ones doctors see most [3].
A doctor usually diagnoses dermatitis by looking at the skin and asking about the history: where the rash started, what it touched, whether it comes and goes, and whether asthma, hay fever or eczema run in the family. A patch test (small amounts of common allergens taped to the back for a couple of days) checks for allergic contact dermatitis, and a skin scraping or biopsy rules out look-alikes such as fungal infection or psoriasis [4].
Acute dermatitis
What you see: a new, bright rash with swelling, small blisters, oozing or weeping.
How it feels: intense itch, sometimes burning or stinging, coming on over hours to days.
What the doctor looks for: a recent trigger (a new product, a plant, a job change) and signs of infection.
Chronic dermatitis
What you see: thick, dry, leathery patches with deeper skin lines, cracks and scaling, often with darker or lighter skin left behind.
How it feels: a constant itch that flares and settles over months or years.
What the doctor looks for: where the patches sit, how long they have lasted and which treatments have been tried.
Quick answers
Is dermatitis the same as eczema?
Almost. “Eczema” is the everyday word for a group of itchy, inflamed rashes, and doctors often use it as a synonym for dermatitis. When people say “eczema” they usually mean atopic dermatitis, the long-lasting form that often starts in childhood [6]. Contact and seborrheic dermatitis are also types of eczema.
Can dermatitis cause swelling or swollen lymph nodes?
Swelling of the skin itself is common, especially in acute allergic contact dermatitis around the eyes, lips or hands. Lymph nodes near a large or scratched patch can swell as they react to inflammation. Tender swollen nodes together with fever, spreading redness or pus suggest an infection and need a doctor the same day.
Can dermatitis damage the skin for good?
Most dermatitis heals without scars. Long scratching can leave thickened, leathery skin and patches that are darker or lighter than the skin around them; these usually fade over months once the itch is controlled. Deep scratching and infections are what leave lasting marks, which is one more reason to treat the itch early.
Is dermatitis a disability?
It can count as one when it is severe and long-lasting enough to limit work or daily life, for example, hand dermatitis that stops someone from doing their job. Whether it qualifies for disability benefits or workplace accommodations depends on the program and on medical records that describe how much it limits you, not on the diagnosis alone.
Types of dermatitis: atopic, contact, seborrheic, herpetiformis and others
The type decides the treatment, so it is worth knowing which one you have. Atopic dermatitis (dermatitis atopica in older texts) is the long-lasting, inherited form; it often starts early, and a 2025 review notes that about 60% of people with it develop it in the first year of life [2]. Contact dermatitis comes from something that touches the skin, and seborrheic dermatitis lives where skin is oily. Dermatitis herpetiformis is a different illness altogether, tied to celiac disease.
Which type do you want to read about?
| Type | Where it shows | Who gets it | What drives it |
|---|---|---|---|
| Atopic dermatitis Most studied | Cheeks and scalp in babies; folds of elbows and knees, neck, hands and eyelids in older children and adults | Mostly starts in childhood; often runs in families with asthma and hay fever | A weak skin barrier plus an overactive immune response; flares with dryness, sweat, stress and irritants [3] |
| Allergic contact dermatitis | Exactly where the substance touched: earlobes, wrists, waist, face, hands | Anyone who has become allergic to a substance | Immune memory of a substance such as nickel, fragrance, preservatives or poison ivy; the rash appears a day or two after contact [4] |
| Irritant contact dermatitis | Hands most often, especially fingers and backs of the hands | Anyone; common in health care, cleaning, food service, hairdressing | Direct damage from water, soap, solvents or friction: no allergy needed [4] |
| Seborrheic dermatitis | Scalp (dandruff), eyebrows, sides of the nose, behind the ears, chest; “cradle cap” on babies’ scalps | Infants and adults, more often with oily skin | A reaction to yeast that normally lives on oily skin; worse with cold, dry weather and stress [7] |
| Dermatitis herpetiformis | Elbows, knees, buttocks, back and scalp, usually on both sides | People with celiac disease, often adults | Gluten. Clusters of very itchy small bumps and blisters, often scratched open before anyone sees them whole; treated with a gluten-free diet and, under a dermatologist, dapsone [8] |
| Other forms | Lower legs (stasis), around the mouth (perioral), coin-shaped patches (nummular), small blisters on palms and soles (dyshidrotic) | Varies by type | Poor circulation, products on the face, dry skin, sweat; dermatitis artefacta is skin damage a person causes themselves, often under stress, and needs gentle, nonjudgmental care |
Dermatitis herpetiformis vs eczema: how to tell them apart
Both itch and both can blister, but dermatitis herpetiformis tends to sit symmetrically on the elbows, knees and buttocks, comes in tight clusters of tiny blisters and burns as much as it itches. Eczema creams barely touch it. It does not respond to the usual eczema steps because the cause is gluten: a skin biopsy confirms it, blood tests look for celiac disease, and the rash settles on a strict gluten-free diet [8]. Cannabinoids have not been studied for it.
How do you get dermatitis? Causes and triggers
You do not catch dermatitis; you develop it when skin meets something it cannot handle. Four things usually combine: genes that make the skin barrier leaky or the immune system quick to react, a skin barrier already weakened by dryness or scratching, allergens the immune system has learned to attack, and irritants that damage any skin given enough contact [6].
Contact dermatitis is the clearest case of cause and effect, and it comes in two kinds that look alike but work differently.
Irritant contact dermatitis
Why it happens: the substance itself damages the skin. Frequent hand washing, water, detergents, solvents and friction wear the barrier down.
Who gets it: anyone, given enough exposure. No allergy is involved.
When it shows: soon after contact, and worse the more often it happens.
Allergic contact dermatitis
Why it happens: the immune system remembers a substance and reacts every time it touches the skin: nickel, fragrances, preservatives, hair dye, rubber chemicals, poison ivy.
Who gets it: people who have become sensitized, sometimes after years of harmless use.
When it shows: usually a day or two after contact, which is why the culprit is easy to miss [4].
Where does the rash show up?
Pick the place to see the usual suspects and what to check.
Hands: wet work, frequent washing and sanitizer, cleaning products and rubber gloves are the usual causes. Check whether it is worse on workdays, and wear cotton liners under gloves.
Feet: shoe leather chemicals, glues and rubber, plus sweat trapped in closed shoes. A rash on the tops of the feet that spares the soles points to shoes; between the toes, think fungus first.
Face & eyelids: eyelid skin is thin and reacts to things you touch with your hands: nail polish, cosmetics, fragrances and the nickel in eyeglass frames. Seborrheic dermatitis favors the eyebrows and the sides of the nose.
Scalp & ears: hair dye, shampoo fragrances and preservatives, and nickel in earrings. Flaking with greasy scales points to seborrheic dermatitis; a burning rash after dyeing hair needs a patch test.
Folds of arms and legs: the classic place for atopic dermatitis. Sweat, wool, heat and dry indoor air make it flare; soft cotton and fragrance-free moisturizer right after bathing help most.
Could medical cannabis be worth discussing for your dermatitis?
Fourteen short questions about your skin, what you have tried and the medicines you take. Your answers stay on this page and show what to bring to a physician.
14 questions · about a minute · your answers stay in this browser
Is dermatitis contagious? Can it spread?
No. Dermatitis is not an infection, and you cannot catch it from someone else or give it to anyone, not by touch, not by sharing towels, not by kissing a child with eczema. Atopic, contact and seborrheic dermatitis all come from the person’s own skin and immune system [6].
It can, however, spread on your own body. Scratching carries the inflammation to new skin, a strong allergic reaction can trigger a rash far from where the substance touched, and an allergen on your fingers ends up on your eyelids or neck. That is spreading of the rash, not of a germ.
The one real exception is infection on top of dermatitis. Broken, scratched skin lets bacteria and viruses in, and those germs can pass to others even though the dermatitis cannot.
When a flare needs a doctor because of infection
- Honey-colored crusts or yellow pus on the rash.
- Fever, chills, or red streaks and warmth spreading from a patch.
- Clusters of painful, punched-out blisters or sores, especially on the face: a sign of eczema herpeticum, a herpes infection of eczema skin that needs care the same day.
- A rash that suddenly hurts more than it itches.
How long does dermatitis last? Can it be cured?
It depends on the type. Contact dermatitis usually clears once the cause is found and avoided. Atopic and seborrheic dermatitis are long-term conditions: there is no cure, but they can be controlled so well that skin stays clear for long stretches. Treatment aims at fewer, shorter and milder flares, not at a one-time fix [3].
Which type do you have?
Pick one to see the usual course.
Contact dermatitis: usually two to four weeks once the trigger is gone; it can go away on its own. It lasts longer, or keeps returning, when the culprit is still in your soap, gloves or jewelry, which is when a patch test pays off [9].
Atopic dermatitis: a long-term condition that comes in flares. Many children improve as they grow, but some carry it into adulthood, and it can start in adults too. Daily moisturizing and early treatment of flares keep it quiet [6].
Seborrheic dermatitis: cradle cap in babies usually clears within months. In adults it tends to come and go for years, worse in winter, and returns when medicated shampoos are stopped [7].
Dermatitis herpetiformis: lasts as long as gluten stays in the diet. On a strict gluten-free diet the rash settles, though it can take months to a couple of years; medicine controls the itch in the meantime [8].
Signs it is time to see a dermatologist
- The rash is not better after two to three weeks of good skin care and avoiding likely triggers.
- Itch keeps you or your child awake at night.
- It covers a large area, or keeps coming back in the same place.
- You need a steroid cream most days to keep it down.
- You suspect an allergy but cannot find the cause.
How to treat, manage and prevent dermatitis: standard care
Proven treatment comes first, and cannabis is not part of it. Dermatologists build care as a ladder: everyone starts on the bottom step, and people move up only as far as their skin needs. American Academy of Dermatology guidelines describe the same order [1].
Daily emollients
Every day, for everyone, even when skin looks clear. Thick fragrance-free creams or ointments right after a short lukewarm bath rebuild the barrier.
Topical steroids for flares
For red, itchy flares, in the strength your doctor picks for the body area, then stepped down or used twice a week to prevent the next flare.
Non-steroid creams
On the face, eyelids and folds, or when steroids are needed too often: calcineurin inhibitors (tacrolimus, pimecrolimus), PDE4 inhibitor and JAK inhibitor creams.
Phototherapy, biologics and JAK pills
For moderate to severe disease that creams do not control: light therapy in the clinic, injectable biologics, or JAK inhibitor tablets with regular checkups.
Antihistamine pills do little for the itch of eczema itself, though sedating ones are sometimes used for a few nights to help sleep. Bleach baths, wet wraps and treating infection are added when a doctor sees the need.
Where is it?
The same disease is treated differently on different skin.
Face: facial and eyelid skin is thin and absorbs more, so doctors use mild steroids briefly or switch to non-steroid creams. Do not use a strong body cream on your face without asking.
Hands: palms are thick and often need a stronger cream; protection matters as much as medicine: cotton-lined gloves for wet work, lukewarm water, moisturizer after every wash. Long-lasting hand eczema deserves a patch test.
Feet: rule out athlete’s foot first, since steroids make fungus worse. Then treat like hands: stronger creams, cotton socks, breathable shoes.
Babies and children: moisturizer is the backbone; creams and strengths are chosen by the pediatrician or dermatologist for the child’s age and the area. Keep nails short and dress in soft cotton. Cannabis products are not for children.
Everyday care and prevention
- Short, lukewarm baths or showers, then moisturizer within three minutes.
- Fragrance-free soap substitutes, laundry detergent and skin care.
- Soft cotton next to the skin; wool and rough fabrics off.
- Cool bedroom, humidifier in dry winter air, nails short.
- Know your triggers and keep a simple diary of flares.
- Treat a flare early, at the first itch, instead of waiting it out.
Contact dermatitis: how to treat it and a safe list
Contact dermatitis is the one type with a clear finish line: find the substance, keep it off your skin, and the rash goes away. Treatment follows five steps [9].
- Find and remove the cause. Think back one to two days: a new product, jewelry, gloves, plants, a job task.
- Wash it off. Rinse the skin with lukewarm water and mild soap as soon as you suspect contact; wash clothing and tools that touched it.
- Cool and calm. Cool wet compresses for 15 to 30 minutes at a time ease itch and oozing.
- Use the cream your doctor recommends. A steroid cream for a short course is the usual choice; widespread or facial rashes need a doctor’s plan.
- Get a patch test if it returns. A dermatologist can test dozens of common allergens to name the culprit for good.
Safe list: what is usually tolerated, and what to check
Pick a group to narrow the list.
| Item | Usually tolerated | Common culprits to check |
|---|---|---|
| Skin care | ||
| Moisturizer | Plain petroleum jelly, fragrance-free ointments with few ingredients | Fragrance, lanolin, botanical extracts, some preservatives |
| Cleanser and makeup | Fragrance-free soap substitutes, mineral sunscreen | Fragrance, formaldehyde-releasing preservatives, nail polish resins, hair dye (PPD) |
| Household | ||
| Laundry and cleaning | Fragrance- and dye-free detergent, double rinse | Fabric softener, scented detergent, dish soap on bare hands |
| Gloves | Vinyl or nitrile gloves with cotton liners | Rubber accelerators in latex and some rubber gloves |
| Metals | ||
| Jewelry and accessories | Titanium, surgical-grade stainless steel, plastic | Nickel in earrings, belt buckles, jeans buttons, watchbands, eyeglass frames |
| At work | ||
| Hand care on the job | Barrier cream before shifts, moisturizer after, gloves for wet tasks | Wet work, sanitizers, cement, epoxy resins, cutting fluids, hairdressing chemicals |
A list is a starting point; a patch test shows what your own skin reacts to. Cannabis creams are no exception: people allergic to CBD, CBG or hemp seed oil were excluded from a cannabinoid ointment trial [10].
Can cannabis or CBD help dermatitis?
It has been studied, but only a little, and the human studies are weak. A handful of small trials have tested creams and ointments with CBD and related compounds in atopic dermatitis and reported less itch and better skin, but none of them compared the product against a placebo cream in the same study. Everything else is laboratory and animal work [2].
The answer also depends on how cannabis reaches the body, so it falls into three layers.
On the skin: creams and ointments
An ointment with 30% CBD and 5% CBG in a small pilot study [10]; an emollient combining ginger extract and CBD in a 12-week trial [11].
Two small studies without a placebo group; the larger one enrolled adults and children with mild atopic dermatitis.
A reasonable question to raise; skin can also react to CBD, CBG or hemp seed oil.
Any form that reaches the blood
No trial in people with dermatitis has tested oils, edibles, capsules or patches for the skin.
What is known is about safety: CBD blocks CYP liver enzymes and can raise levels of other drugs [12].
Drowsiness and interactions come along; skin benefit is unproven.
Smoke and vapor
Nothing for the skin. No study here used smoked or vaped cannabis for dermatitis.
No evidence of benefit.
Smoke irritates the airways (a concern for the many people with eczema who also have asthma) and does not treat the rash.
How big is the effect?
Honestly, nobody can say. Measuring an effect size needs trials that compare a product with a placebo and report the result with a margin of error, and for cannabinoids in dermatitis none of the studies on this page did. What exists are before-and-after numbers from single groups of patients, which also improve with time, moisturizing and the seasons.
How the 12-week trial was done
Who: adults and children with mild atopic dermatitis; 100 enrolled and 94 analyzed. People already on systemic treatment or using steroid or calcineurin creams regularly were excluded [11].
What they used: an emollient combining ginger extract and CBD, for 12 weeks.
What was measured: scores on a patient questionnaire of eczema symptoms (RECAP) dropped by 54% in the first 4 weeks; 64% reached a meaningful drop in itch; by the end, 59% had clear or almost clear skin, and 93% did not use any steroid cream during the trial [11].
What was missing: a control group inside the trial. The authors compared against outside real-world data instead, and a record of how much product people actually used [11].
What this means in practice: if dermatitis is controlled poorly despite good care, a physician may discuss a cannabinoid product alongside, not instead of, your treatment, and will weigh it against allergy, drowsiness and the medicines you already take.
What the research shows, from strongest to weakest
Not all studies count the same. A trial in people answers “does it help?” far better than an experiment on mouse skin or a dish of cells. Here is what exists for cannabinoids and dermatitis at each level, with background studies clearly marked.
| Level | What exists for dermatitis | What it can and cannot tell you |
|---|---|---|
| Trials in people | Two small studies of skin products: a CBD and CBG ointment in nine participants [10], and a ginger-and-CBD emollient in 100 patients over 12 weeks [11]. Neither had a placebo group inside the study. | Shows that skin improved while people used the product and how they tolerated it; cannot show the product caused the improvement. |
| Reviews and observational work | Narrative reviews summarizing cannabinoids in atopic dermatitis in people [2] and in dogs [12]. | Map the field and its risks; a review is only as strong as the studies inside it. |
| Animal and lab work | Mouse and rat models of dermatitis treated with CBD, CBG, CBC and cannabis extracts, and human skin cells in a dish [13][14][15][16][17]. | Explains why scientists are interested; says nothing yet about patients. |
Browse the studies yourself
Every study cited on this page, in plain words. Studies that are only background are marked.
An emollient with ginger extract and CBD for 12 weeks
Itch, eczema scores and skin clearance improved over 12 weeks in mild atopic dermatitis, with no control group inside the trial [11].
An ointment combining CBD and CBG
The ointment contained 30% CBD and 5% CBG. Skin measurements in atopic dermatitis improved after the ointment; the study was small, uncontrolled and ran from May to July, when eczema often settles by itself [10].
Cannabinoids for atopic dermatitis
Summarizes how cannabinoids act on itch, inflammation and the skin barrier, and notes thin clinical experience and legal barriers to research [2].
CBD for atopic dermatitis in dogs
Found the evidence inconclusive and flagged liver enzyme checks, drug interactions and product testing for THC and contaminants [12].
A CBD-rich cannabis flower extract in mice
Given to mice with chemically induced dermatitis, the extract eased skin inflammation and supported barrier proteins [13].
A CBD ointment compared with hydrocortisone
In rats, the 2% CBD extract ointment reduced ear swelling, though it was tested at a different strength than the 1% hydrocortisone it was compared with [14].
CBG in skin cells and mice
Cannabigerol calmed inflammatory signals in skin cells and dermatitis-model mice; there are no human trials of topical CBG [15].
CBC applied to mouse skin
Cannabichromene on the skin reduced lesion severity and allergy-type immune signals in dermatitis models [16].
Electroacupuncture and the CB2 receptor
Electroacupuncture eased itch in dermatitis-model mice by switching on the body’s own cannabinoid system; only male mice were used [18].
A CBD hydrogel tested on membranes and skin samples
A new gel released CBD slowly and carried it into skin samples in the lab; it has not been tested on living animals or people [19].
A hybrid cannabis flower extract in human skin cells
In a dish of skin cells, the extract cut inflammatory gene activity and supported barrier proteins [17].
CBD and immune cells in atopic dermatitis
CBD changed how immune cells behaved in the lab, which the authors link to a possible role in atopic dermatitis [20].
No studies of this type are cited on this page.
What kinds of studies is this evidence built on?
How to read it: each row is one kind of study, and the bar shows how many published studies on cannabinoids and dermatitis are of that kind; the number is at the end of the row. Stronger designs are at the top. Gray bars are commentary, animal and lab work, which cannot answer whether something helps patients.
Show as a table
| Design | Studies |
|---|---|
| Randomized trials | 2 |
| Other clinical trials | 3 |
| Case-control studies | 1 |
| Narrative reviews | 4 |
| Animal studies | 11 |
| Cell and lab studies | 5 |
| Who was studied | Studies |
|---|---|
| People in clinical trials | 2 |
| People observed, not treated | 18 |
| Animals | 5 |
| Cells and molecules | 11 |
| Not classified | 5 |
What lab and animal studies suggest, and why it isn’t proof
Most of the excitement about cannabinoids and skin comes from experiments on cells and animals. Skin has its own endocannabinoid system – receptors called CB1 and CB2 and the body’s own cannabinoid-like molecules – that helps regulate itch, inflammation and how skin cells mature. Researchers ask whether plant cannabinoids can nudge that system [2].
Itch signals
Cells and animals
Cannabinoids dampen itch signals that antihistamines do not reach [2]. In mice, switching on the CB2 receptor in the skin eased scratching [18].
Inflammation (NF-κB, TNF-alpha)
Cells and animals
Cannabis extracts, CBG and CBC turned down inflammatory switches inside skin and immune cells, including NF-κB, TNF-alpha and the JAK/STAT pathway that modern eczema pills also target [17][15][16].
Skin barrier (ceramides, hydration)
Cells and animals
Cannabinoids raised ceramides, the fats that seal the skin, and a water channel that keeps it hydrated [2]; an extract restored barrier proteins such as filaggrin in mice [13].
In animals
What was tested: CBD-rich cannabis extracts, and CBG and CBC on the skin, in mice and rats whose dermatitis was triggered with chemicals [13][14][16].
What changed: less swelling, redness and scratching, and calmer immune signals.
What it means: a lead worth testing, in animals only.
In people
What was tested: two skin products containing CBD, one with CBG, in small studies without a placebo group [10][11].
What changed: itch and skin scores improved while people used them.
What it means: promising enough to study properly; not proof that CBD caused it.
Animal results do not transfer to people: dermatitis triggered by a chemical in a mouse ear is not the same disease as lifelong eczema, and some studies used only male animals [18].
How the rat study compared CBD with hydrocortisone
Researchers triggered dermatitis on the ears of 32 rats, then applied an ointment with 2% CBD from a cannabis extract, a 1% hydrocortisone ointment, or plain petroleum jelly. On day 12, ears measured 1.10 mm with the CBD ointment, 1.26 mm with hydrocortisone and 1.45 mm with petroleum jelly, against 0.68 mm in healthy rats [14].
That looks like CBD “beat” the steroid, but the two ointments were not equal in strength, the ears never returned to normal, and rats are not people. The authors themselves list the different concentrations and the animal model as limits [14].
A separate lab team built a hydrogel that released 86.32% of its CBD over 144 hours and carried it into the deeper layer of skin samples, tested on membranes and donated skin, not on patients [19].
Which cannabinoids have been studied for dermatitis?
“Cannabis” in these studies means very different things: CBD, which does not cause a high; CBG and CBC, lesser-known plant cannabinoids; whole-flower extracts; and hemp seed oil, which carries almost no cannabinoids at all. THC, the compound that causes a high, has hardly been tested for skin. A result for one does not carry over to another.
| Substance | What was studied | Design | What came out |
|---|---|---|---|
| Plant cannabinoids | |||
| CBD (cannabidiol) | Skin products in atopic dermatitis [10][11]; ointment in rats [14]; immune cells in the lab [20] | Small uncontrolled studies; animal and lab studies | Improvement while used, without a placebo comparison; blocks liver enzymes when it reaches the blood [12] |
| CBG (cannabigerol) | 5% CBG together with 30% CBD in an ointment [10]; skin cells and mice [15] | Pilot study; cell and animal study | Calmer inflammation in the lab; no trial of CBG alone in people [15] |
| CBC (cannabichromene) | Applied to the skin of dermatitis-model mice [16] | Animal study | Less severe lesions and allergy-type signals; no human data |
| CBDA-rich flower extracts | Extracts whose CBDA and CBD made up 27.81% of their weight, in mice [13] and in skin cells [17] | Animal and cell studies | Less inflammation and better barrier proteins; no human data |
| Other products and prescription medicines | |||
| Hemp seed oil | Part of cannabinoid skin products; people sensitive to it were excluded from the ointment trial [10] | Ingredient, not a test substance | A moisturizing oil; it can itself cause allergy |
| FDA-approved cannabinoid medicines (Epidiolex, dronabinol, nabilone) | Not studied for skin disease in this research | Prescription medicines | None is approved for dermatitis; they are approved for seizures, nausea and appetite loss and are filled at a pharmacy, not bought with a card [21] |
Ways to use cannabis: what each form means for your skin
Cannabis is not only smoked. People vape it, swallow it as gummies, capsules or oils, hold drops under the tongue, or rub it into the skin. For dermatitis the difference matters more than usual: only products on the skin were tested for the rash, while everything that reaches the blood brings effects on the brain, the liver and other medicines. This section explains the differences; it does not recommend a form.
How do you use it, or how would you?
Choose the closest; many people combine more than one.
Specific to smoking
Joints, blunts, pipes and bongs burn plant material. Smoke does not reach the rash in any useful way, irritates the throat and lungs, and can worsen asthma, which many people with atopic dermatitis also have. Heat and smoke around the face can irritate facial eczema.
Specific to vaping and dabbing
Dry-herb vaporizers, oil pens and cartridges avoid burning, but hot vapor still travels the same airways. Concentrates used for dabbing, such as wax, shatter or rosin, are very strong. None of this treats skin.
Specific to edibles and capsules
Gummies, chocolates, drinks, capsules and swallowed oils avoid smoke. They act slowly and last for hours, and the liver handles them before they reach the blood. A second piece “because the first did nothing” is a common cause of taking too much. CBD taken by mouth can raise levels of medicines cleared by the same liver enzymes [12].
Specific to tinctures and sprays
Drops and oils held under the tongue and mouth sprays avoid the lungs and are measured by the drop or spray. Part of the dose is still swallowed, so liver processing and interactions apply.
Specific to topicals and patches
Creams, balms and ointments act mainly where they are applied and are the only form tested for dermatitis [10][11]. They can still cause an allergic rash, especially on broken skin, and they contain other ingredients that can irritate. Transdermal patches are different: they deliver cannabinoids into the bloodstream, so effects on the brain and on other medicines count as for any other form.
Specific to prescription cannabinoids
Epidiolex (CBD), dronabinol and nabilone are exact-dose medicines prescribed by a doctor and filled at a pharmacy, not bought with a medical card. None is approved for skin disease [21].
True of every form
- Products sold without a prescription vary; testing for THC and contaminants matters [12].
- THC can cause sleepiness, dizziness and slower reactions; no driving after use.
- Whatever reaches the blood can change levels of other medicines.
- Skin products are not a reason to stop prescribed creams.
Choosing a form is a conversation for the appointment.
All forms as a table
| Form | What it avoids | What remains |
|---|---|---|
| Smoking | Delay in onset | Smoke in the airways, possible asthma flares, no effect on the rash, all effects of THC |
| Vaping & dabbing | Burning plant material | Hot vapor in the airways, very strong concentrates, no effect on the rash, all effects of THC |
| Edibles & capsules | Smoke and vapor | Slow, long effect, risk of a repeat dose, liver processing, interactions |
| Tinctures & sprays | Smoke and vapor | Partly swallowed dose, effects on the brain if THC is present, interactions |
| Topicals | Most effects on the brain and liver | Allergic or irritant skin reactions; small, uncontrolled evidence |
| Transdermal patches | Smoke, vapor and swallowing | Effects on the brain, interactions, skin reaction under the patch |
| Prescription cannabinoids | Unknown product content | Drowsiness, interactions; not approved for skin disease |
What science doesn’t know yet
The gaps are most of the story here. The researchers who ran these studies list the same problems themselves.
- No large controlled trials. The skin-product studies in people had no placebo group inside them; one compared against outside real-world data instead [11].
- Tiny samples and the seasons. The CBD and CBG ointment study had nine participants and ran from May to July, when atopic dermatitis often goes into natural remission [10].
- No standard doses or products. Every study used a different extract, ointment or combination, and some combined CBD with other active ingredients such as ginger [11].
- No head-to-head test against steroid creams in people. The only comparison with hydrocortisone was in rats, at unequal strengths [14].
- Animals and cells dominate. Several studies stop at skin cells in a dish [17] or test only male mice [18]; whether results hold in people is unknown [13].
- Long-term safety and product stability. How new CBD formulations hold up over time in storage still needs testing [19], and long-term use on the skin has not been followed.
- Legal barriers slow research. Reviewers note that the law in many places makes clinical trials harder to run [2].
Safety, side effects and drug interactions
On the skin, the main risk is the skin itself: people with dermatitis react to ingredients more easily than most. Once a product reaches the blood, the familiar cannabinoid effects and the liver come into play. The studies here report few side effects, but they were small and short, so “few reported” is not the same as “safe”.
Skin reactions to topicals
Allergy to CBD, CBG or hemp seed oil was reason enough to exclude people from a cannabinoid ointment trial [10]. Test a new product on a small patch first and stop if the rash spreads.
Sleepiness
Lethargy, sleepiness and unusual calm are reported with CBD taken by mouth [12]. THC adds its own drowsiness, which can be mistaken for better sleep.
Stomach upset
Nausea, vomiting and diarrhea are reported with CBD by mouth, more often at higher amounts [12].
Driving
THC slows reactions and judgment. Do not drive or operate machinery after any form that contains THC, including edibles that kick in late.
Liver checks
Reviewers advise monitoring liver enzymes and bile acids with regular CBD use by mouth [12] – worth knowing if you also take methotrexate or other medicines watched with liver tests.
Product quality
Unregulated products may contain more or less than the label says, unexpected THC or contaminants; well-characterized, tested products are the safer choice [12].
Drug interactions to discuss with a doctor
Open each one. This is what is known, not a complete list.
Seizure medicines (antiepileptic drugs) drug-level data
CBD blocks CYP liver enzymes and can raise blood levels of antiepileptic drugs cleared by the same pathways [12]. The finding comes from a review written for veterinary use; the same family of liver enzymes clears these drugs in people. Do not adjust a seizure medicine on your own.
Cyclosporine and tacrolimus taken by mouth mechanism only
These immune-suppressing medicines, sometimes used for severe eczema, are cleared by the same CYP liver enzymes that CBD blocks [12]. Higher levels can strain the kidneys and raise blood pressure. No study here measured the pairing; your physician checks it before anything is added. Tacrolimus ointment on the skin reaches the blood far less.
Sedating antihistamines for night itch mechanism only
Hydroxyzine and diphenhydramine are often taken at bedtime for itch. Together with THC or CBD by mouth they can add up to heavy next-morning drowsiness, slower reactions and falls. More about combining cannabis with sedatives in mixing cannabis and Xanax.
Alcohol mechanism only
Alcohol adds to the sedation and impairment of THC, and it also dilates skin blood vessels and can make itch worse at night. Avoid combining them, especially before driving.
Bring the complete list, prescriptions, injections such as biologics, pills such as JAK inhibitors, over-the-counter sleep aids and antihistamines, supplements, and anything used “only sometimes,” to the appointment. That list decides more than the diagnosis whether a cannabinoid is reasonable to try.
Who should not use cannabis for this
For some people the answer is “not now” or “not at all,” whatever the rash. Trials in this field exclude these groups, so there is no evidence of safety for them.
- Pregnancy or breastfeeding – cannabinoids pass to the baby, and no safety data exist.
- Children and teenagers – dermatitis often starts in childhood, but cannabis products are not a children’s treatment; see marijuana and minors.
- Known allergy to CBD, CBG or hemp seed oil – people with it were excluded from the ointment trial [10].
- Open, oozing or infected skin, for products applied to the skin: treat the infection first.
- Taking cyclosporine, tacrolimus by mouth or other systemic immune suppressants without the prescribing doctor’s agreement; people on systemic eczema treatment were excluded from the 12-week trial [11].
- A history of psychosis – THC can bring it back; see cannabis and psychosis.
- Liver disease – reviewers advise liver enzyme checks with CBD taken by mouth [12].
Talk to a licensed physician about whether any of these apply
Is dermatitis a qualifying condition for a medical card?
Usually not by name. State medical cannabis programs keep their own lists of qualifying conditions, and dermatitis or eczema rarely appears on them. That does not always close the door. Some programs cover any “chronic” or “debilitating” condition, or let the physician decide what qualifies; and many people with dermatitis also have a listed diagnosis, such as insomnia or anxiety.
The lists change as legislatures and health departments update them, so the current wording for your state is the one that counts. The physician checks it at the evaluation, using your records.
Your state names it or allows physician discretion
Bring a record of the diagnosis and of what you have tried. The physician decides whether your dermatitis meets the state’s wording.
A condition you also have is listed
What counts is a diagnosis in your records, not a symptom alone: lost sleep from itch is not the same as diagnosed insomnia.
Neither applies
A medical card may not be available for you yet. Some states accept petitions to add conditions, and adult-use states sell without a card.
Read your state’s rules · Getting a card without a listed condition
What else has a doctor diagnosed?
State lists name diagnoses, not symptoms: pick what is in your records.
Insomnia: night itch often leads to a diagnosed sleep problem, and insomnia is listed in some programs. Read insomnia and medical cannabis.
Anxiety: stress and flares feed each other, and several states list anxiety disorders or accept them under broader wording. Read anxiety and medical cannabis.
Depression: long-lasting, visible skin disease weighs on mood; fewer states list depression, and THC can affect mood in both directions. Read depression and medical cannabis.
Asthma: common alongside atopic dermatitis; it is also the reason smoked and vaped forms are a poor fit. Read asthma and medical cannabis.
None of these: then the decision rests on your state’s wording and the physician’s judgment. Start with your state’s medical marijuana laws.
Medical card or recreational purchase
In states with adult-use sales, adults can buy without a card. A card still changes several things, though each state sets the details.
| Aspect | With a medical card | Recreational |
|---|---|---|
| Taxes | Often lower; some states waive part of the cannabis tax for patients | Full state and local cannabis taxes |
| Purchase and possession limits | Often higher; depends on your state | Set for adult-use buyers |
| Products | Medical dispensaries and, in some states, medical-only products such as higher-strength topicals | Adult-use product range |
| Age | Patient age rules set by each program, often lower than the adult-use age | Adult-use age set by the state |
| Physician involvement | A licensed physician reviews your skin, conditions and medicines | None |
| Document | State card or recommendation, recorded in a confidential registry | Government ID only |
Will a card save you money?
It can, but only where your state taxes patients less than recreational buyers, and the amount depends on your state’s tax rates and how much you buy. Weigh that against the evaluation fee and any state registration fee. The breakdown is in medical vs. recreational cannabis taxes, and the wider differences in medical and recreational cannabis compared.
What the program in your state involves
Qualifying is the first of two steps. In most states a physician’s recommendation is followed by registration with the state health department, which issues the card and enters you in a confidential patient registry; in a few, the recommendation itself is what a dispensary asks for. Purchases happen at licensed dispensaries. The state program publishes which ones hold a license, and products there are lab-tested and labeled with their THC and CBD content.
Many state laws also let a patient name a registered caregiver who may buy and handle products on their behalf; who qualifies and how to register is set by each state. Cards from one state are not automatically valid in another; see which states accept out-of-state cards. Possession limits, home growing and taxes are listed state by state on the laws and regulations pages.
What this means if you are considering it
A good evaluation is a conversation about your skin, the treatments you have already tried and what would count as “better” for you. It goes faster and safer when the facts are on the table.
What to bring to the appointment
Tap each item as you get it ready.
Questions worth asking
- Would a product on the skin or one taken by mouth make more sense for me, and why?
- Which of my current medicines could interact, and what would we watch for?
- CBD alone, or anything with THC, and why that choice?
- How would we know within a few weeks whether it is helping?
- What should make me stop right away?
An evaluation makes sense if
- Itch or poor sleep persists despite good daily care and prescribed treatment.
- Your full medicine list can be reviewed.
- You plan to keep your current treatment while you discuss options.
- Your state’s program covers your diagnosis or a related one.
It is not the right step if
- The hope is to cure dermatitis or replace your prescriptions.
- The rash looks infected or is spreading fast.
- You are pregnant or breastfeeding.
- The patient is a child.
This page summarizes published research for education. It does not replace a physician’s advice. Cannabis does not cure dermatitis, the human studies of cannabinoid skin products are small and uncontrolled, and any form that reaches the blood can interact with other medicines.
How to get a medical card for dermatitis online
Everything happens online, so there is nowhere to travel and no waiting room. Four steps take you from the first form to a card in your hand.
Fill in the intake form
Your state, your diagnoses and your current medicines. Have your dermatitis records, photos of flares and the list of treatments tried ready to upload.
See a physician licensed in your state
A one-on-one appointment online. You agree on the time with the physician; keep an hour free rather than a minute.
Receive your signed recommendation
If the physician approves, the signed recommendation arrives in your account after the appointment.
Register with your state
Where required, you submit the recommendation to the state program, which reviews it and issues the card.
Where are you starting from?
Pick the one that fits you best.
First card: follow the four steps above. Bring the dermatitis history and the medicine list; the physician decides whether your situation meets your state’s rules.
Renewing: cards expire on a schedule your state sets, and renewal is a repeat evaluation. Bring what has changed since last time: new flares, new creams, new prescriptions, and choose your state at the top of the page.
Moved states: a card from your old state usually does not carry over. You need an evaluation by a physician licensed in your new state and its own registration; check the new state’s rules.
I don’t want to smoke: you don’t have to. Skin products, oils and other forms are discussed with the physician; see what each form means for your skin.
After you apply: what happens next
Right away: a confirmation email with a link to your account, where your appointment, documents and messages live.
Before the appointment: you agree on the time with the physician and join from your account; keep an hour free rather than a minute.
After the appointment: if the physician approves, the signed recommendation can arrive in your account in as little as 15 minutes after the appointment, depending on your state. Registration and the physical or digital card come from the state, on the state’s timeline.
If something goes wrong: write to support from your account, so your message is attached to your file.
What you end up with
Across 250 reviews from patients in the states where we are licensed. We do not sort them by score and do not hide the low ones.
- 150,000+patients evaluated – everyone who has been through an appointment with us, in every state where we are licensed
- Since 2017doing only this: online evaluations for medical cannabis programs, and nothing else on the side
A recommendation from a physician licensed where you live, and, once your state registers it, a card that lets you buy at licensed dispensaries. Your documents stay in your account and documents, and how the medical card works explains the evaluation, the fee for your state shown before you pay and what happens if a recommendation is not issued. The physicians who see patients are listed on our physicians page.
Programs for veterans and for people with low income are available in some states. Renewing? Choose your state at the top of the page.
Questions people ask about dermatitis and cannabis
How long does dermatitis last?
Contact dermatitis usually clears in two to four weeks once the trigger is avoided. Atopic and seborrheic dermatitis are long-term and come in flares that last days to weeks, with calm stretches in between [9].
Is dermatitis contagious?
No. You cannot catch dermatitis or pass it on. Only an infection on top of scratched skin, such as impetigo or herpes, can spread to others [6].
Can dermatitis be cured?
Contact dermatitis goes away when the cause is removed. Atopic and seborrheic dermatitis cannot be cured, but they can be controlled so that skin stays clear for long periods. Cannabis does not cure any type.
Is dermatitis acute or chronic?
Both are possible. Acute dermatitis is a new, often blistering rash that settles in weeks; chronic dermatitis lasts months or years and leaves thick, dry, leathery skin. Atopic dermatitis is chronic with acute flares.
How do you treat contact dermatitis?
Find and avoid the cause, wash the skin, use cool compresses, and apply the steroid cream your doctor recommends for a short course. A patch test with a dermatologist names the allergen if the rash keeps returning. The step-by-step list is in contact dermatitis treatment.
Is there a safe list for contact dermatitis?
A general one, yes: fragrance-free skin care, plain petroleum jelly, vinyl or nitrile gloves with cotton liners, titanium or surgical steel jewelry. Your own patch test result always overrides it. See the safe list table.
Can I use a CBD cream for eczema?
Is delta-8 THC the same as medical cannabis?
No. Delta-8 products sold in shops and online are less tightly regulated, labels may not match what is inside, and delta-8 acts much like regular THC, with the same drowsiness and impairment. It has not been studied for dermatitis.
Can I use my card at any dispensary, or in another state?
Within your state, at licensed medical dispensaries. Other states may or may not honor it; check which states accept out-of-state cards and traveling with cannabis before a trip.
What if my card is lost?
Most states let you request a replacement from the program that issued it. The steps are in what to do if your card is lost and the medical card FAQ.
How do I renew my medical card?
Cards expire on a schedule your state sets, and renewal means a repeat evaluation with updated medicines and a new recommendation. Bring any changes in your skin, treatments or prescriptions, then choose your state from the list at the top of this page. Details are on how the medical card works.
How much does it cost, and what if I’m not approved?
The evaluation fee for your state is shown before you pay; a state registration fee, where one exists, is paid to the state separately. Whether a recommendation is issued is the physician’s medical decision. What happens to the fee in that case is explained on how the medical card works.
Is an online evaluation legitimate?
Yes, where state law allows telemedicine for medical cannabis evaluations. The appointment is one-on-one with a physician licensed in your state, and the recommendation is the same document an in-person visit would produce.
Will my insurance or my employer find out?
Health insurance does not cover medical cannabis evaluations or products, so there is no claim to see. Your employer is not notified by the program. Many employers can still enforce drug-free policies and drug tests; protections for card holders differ by state, so read your state’s rules on the laws and regulations pages.
Who finds out? Privacy, firearms and work
Privacy: your medical records are protected under the HIPAA Privacy Rule [22], and state patient registries are confidential; dispensaries and law enforcement can usually check only whether a card is valid.
Firearms: federal law bars anyone who is an “unlawful user” of a controlled substance from having a firearm [23], and the federal purchase form asks about it, so a state card does not change the federal rule.
Work and driving: employment protections differ by state, and driving after THC is illegal everywhere. Read your state’s rules on the laws and regulations pages.
More research on cannabis and dermatitis
This page cites a selection of studies. Our research library holds every study we track on cannabis and dermatitis, from laboratory work to clinical trials, and lets you filter them by cannabinoid, study type and year.
- studies
- 140+
- in people
- 48
- clinical trials
- 13
References
23 sources
- 1. American Academy of Dermatology. Guidelines of care for the management of atopic dermatitis. 2023.
- 2. Therapeutic potential of cannabinoids for treating atopic dermatitis. DOI: 10.1186/s42238-025-00317-4 PMID: 40818974
- 3. American Academy of Dermatology Association. Atopic dermatitis: overview. 2024.
- 4. American Academy of Dermatology Association. Contact dermatitis: overview. 2024.
- 5. Centers for Disease Control and Prevention, National Center for Health Statistics. ICD-10-CM: International Classification of Diseases, Tenth Revision, Clinical Modification. 2025.
- 6. National Institute of Arthritis and Musculoskeletal and Skin Diseases. Atopic dermatitis. 2023.
- 7. American Academy of Dermatology Association. Seborrheic dermatitis: overview. 2024.
- 8. National Institute of Diabetes and Digestive and Kidney Diseases. Dermatitis herpetiformis. 2020.
- 9. MedlinePlus, U.S. National Library of Medicine. Contact dermatitis. 2024.
- 10. Evaluation of Biophysical Parameters of the Skin of Patients With Atopic Dermatitis After Application of an Ointment Containing 30% Cannabidiol and 5% Cannabigerol. DOI: 10.2147/CCID.S472746 PMID: 40124934
- 11. Long-term Progressive Improvement of Atopic Dermatitis by an Herbal Emollient Plus Combination in a 12-week Clinical Trial. DOI: 10.2340/actadv.v105.43026 PMID: 40534203
- 12. The Potential of Cannabidiol for Treating Canine Atopic Dermatitis. DOI: 10.3390/vetsci12020159 PMID: 40005919
- 13. Cannabidiol-Dominant Cannabis sativa L. Inflorescence Extract Ameliorates Atopic Dermatitis by Modulating NLRP3 Inflammasome and JAK1/STAT6 Signaling in DNCB-Induced Mice. DOI: 10.3390/nu18142382 PMID: 42514451
- 14. Anti-Inflammatory Activity of Cannabis sativa L. Extract in 2,4-Dinitrochlorobenzene-Induced Dermatitis in Rats. DOI: 10.3390/ph18030370 PMID: 40143146
- 15. Anti-Inflammatory Effects of Cannabigerol In Vitro and In Vivo Are Mediated Through the JAK/STAT/NFκB Signaling Pathway. DOI: 10.3390/cells14020083 PMID: 39851511
- 16. Cannabichromene as a Novel Inhibitor of Th2 Cytokine and JAK/STAT Pathway Activation in Atopic Dermatitis Models. DOI: 10.3390/ijms252413539 PMID: 39769302
- 17. Hybrid Cannabis sativa L. inflorescences exert an anti-inflammatory effect through the modulation of MAPK/NF-κB/NLRP3 inflammasome and JAK1/STAT6 pathway in HaCaT cells. DOI: 10.3389/fphar.2025.1617180 PMID: 40777996
- 18. Electroacupuncture exerts antipruritic and anti-inflammatory effects on atopic dermatitis by activating CB2 receptor. DOI: 10.1186/s13020-025-01102-4 PMID: 40420206
- 19. Amorphous Solid Dispersion Hydrogel Platform for Transdermal Delivery of Cannabidiol with Therapeutic Potential for Dermatitis. DOI: 10.3390/pharmaceutics18060666 PMID: 42357282
- 20. Cannabidiol modulation of immune cell function: in vitro insights and therapeutic implications for atopic dermatitis. DOI: 10.5114/ada.2024.142182 PMID: 39290893
- 21. U.S. Food and Drug Administration. FDA and Cannabis: Research and Drug Approval Process. 2023.
- 22. U.S. Department of Health and Human Services. The HIPAA Privacy Rule. 2024.
- 23. Legal Information Institute, Cornell Law School. 18 U.S. Code § 922: Unlawful acts. 2024.