Contact Dermatitis: Causes, Symptoms, and Treatment
Medically reviewed by Sumiran Racherla, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Contact Dermatitis?
A dermatologist, a doctor who treats skin conditions, is the expert at diagnosing contact dermatitis and helping you avoid what causes it. Primary care doctors also see this rash often. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is contact dermatitis?
Contact dermatitis is a skin condition. The skin becomes red, sore, or inflamed after direct contact with a substance. The first sign is often itchy skin, followed by a rash. You may also see blisters. It is not contagious, so you cannot give it to anyone else.
There are two types. Irritant contact dermatitis is the most common. It is not caused by an allergy. It is the skin's reaction to irritating substances or friction. Allergic contact dermatitis happens when your skin touches a substance that causes an allergic reaction.
Symptoms
Symptoms depend on the cause and on whether the dermatitis is allergic or from an irritant. Itching is common. It can be severe with an allergic reaction. The rash is often red, streaky, or patchy where the substance touched the skin. With an allergy, the rash may not appear until 24 to 48 hours after exposure. The rash may:
- Have red bumps that may form moist, weeping blisters.
- Feel warm and tender.
- Ooze, drain, or crust.
- Become scaly, raw, or thickened.
An irritant may also cause burning or pain. Irritant dermatitis often looks dry, red, and rough. Contact dermatitis often occurs on the hands.
Causes and who gets it
Irritating substances include soaps, detergents, fabric softeners, solvents, and other chemicals. Cement, hair dyes, pesticides, rubber gloves, and shampoos can also irritate the skin. People who have atopic dermatitis are at increased risk of irritant contact dermatitis.
Common allergens include nickel, fragrances, poison ivy, poison oak, poison sumac, and rubber or latex gloves. Some products cause a reaction only when the skin is also exposed to sunlight. Some sunscreens and perfumes are examples.
You will not have an allergic reaction the first time you are exposed to a substance. You form a reaction after future exposures. Once you develop an allergy, you will be allergic for life. Many people develop contact dermatitis at work. Hairstylists, health care workers, florists, chefs, and mechanics are examples.
How doctors diagnose it
Your provider makes the diagnosis from how the skin looks and from questions about substances you may have touched. A dermatologist may ask about your health, job, and hobbies. Mention all the skin, hair, and nail care products you use, and when the rash appears. Your dermatologist may have you stop certain products for a while to see if the rash clears.
Patch testing may be needed to find out what is causing the reaction. Small patches of possible allergens are put on the skin. It requires at least 3 office visits.
Treatment
The best way to treat contact dermatitis is to avoid what is causing it. If you can avoid the cause, the rash and symptoms will go away. Washing the area with a lot of water can remove any traces of the irritant. Moisturizers help the skin repair itself.
Topical corticosteroid medicines are commonly used. You put a cream or ointment on the skin. Do not use more medicine, or use it more often, than your provider advises. Use topical corticosteroids only for short periods. Long-term use increases the risk of developing more irritant contact dermatitis.
If the rash covers much of your skin, your dermatologist may prescribe a medicine that works throughout the body, such as prednisone. Take it exactly as your dermatologist says, and do not stop it on your own. Stopping it suddenly can bring the rash back as a rebound rash, which can be more serious than the first one. Cool compresses can ease itching. For open sores that leak, calamine lotion or colloidal oatmeal baths can help.
In most cases, contact dermatitis clears up in 2 or 3 weeks. It may return if the cause is not found and avoided. A few people keep getting new rashes. Dermatologists can prescribe long-term medicine for them.
When to see a doctor
Contact your provider if you have symptoms of contact dermatitis, if the skin reaction is severe, or if you do not get better after treatment. Also call for signs of infection, such as tenderness, redness, warmth, or fever. Bacterial skin infections may occur. The sooner you see a dermatologist, the better.
Call 911 or go to the emergency room if you have trouble breathing or swelling of the face, eyes, or tongue.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Such a doctor can look at the rash, ask what touched your skin, and start treatment. They can refer you to a dermatologist if patch testing is needed.
Common questions
Is contact dermatitis contagious?
No. Contact dermatitis is not contagious, so you cannot give it to anyone else.
Can I get contact dermatitis the first time I touch something?
It depends on the type. Very irritating chemicals may cause a reaction after just a short time of contact. With an allergic reaction, you will not react the first time, but you form a reaction after future exposures.
How long does contact dermatitis last?
In most cases, it clears up in 2 or 3 weeks. It may return if the substance that caused it cannot be found and avoided.
Sources
- MedlinePlus - Contact dermatitis
- American Academy of Dermatology - Eczema types: Contact dermatitis overview
- American Academy of Dermatology - Eczema types: Contact dermatitis diagnosis and treatment
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
