Atopic dermatitis can cause small, red bumps, which can be very itchy. Atopic dermatitis most often occurs where your skin flexes — inside the elbows, behind the knees and in front of the neck. Seborrheic dermatitis causes a rash with yellowish and somewhat "oily" scales. In addition to the scalp, seborrheic dermatitis can occur on the sides of the nose, in and between the eyebrows, and in other oil-rich areas.
Each type of dermatitis tends to occur on a different part of your body. Signs and symptoms may include:. A common cause of dermatitis is contact with something that irritates your skin or triggers an allergic reaction — for example, poison ivy, perfume, lotion and jewelry containing nickel.
Other causes of dermatitis include dry skin, a viral infection, bacteria, stress, genetic makeup and a problem with the immune system.
Scratching the itchy rash associated with dermatitis can cause open sores, which may become infected. These skin infections can spread and may very rarely become life-threatening. In people with brown and Black skin, dermatitis might cause the affected area to darken or lighten post-inflammatory hyperpigmentation or hypopigmentation.
It might take months or years to return to your usual skin color. Dermatitis care at Mayo Clinic. Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. This content does not have an English version. This content does not have an Arabic version. Overview Dermatitis is a general term that describes a common skin irritation.
Atopic dermatitis eczema Contact dermatitis Cradle cap Diaper rash Seborrheic dermatitis. Atopic dermatitis on the ankles Open pop-up dialog box Close. Atopic dermatitis on the ankles Atopic dermatitis can cause thickened dry skin and a rash. Avoiding the allergen as much as possible is the only way to keep your skin from becoming itchy and irritated. If you experience severe symptoms, see your doctor.
It can cause a lot of discomfort and may even become a…. Read about different ways to treat contact dermatitis. Skin redness, or erythema, is abnormal redness or flushing of the skin. It can occur alongside other symptoms like swelling and itchiness. Find out….
Nickel is a silver-colored metal found naturally in the environment. Contact dermatitis is a condition that makes skin red or inflamed after contact with an allergen or an irritant. It can be caused by various different…. There are many conditions that can cause a rash and skin that feels hot to the touch, including dermatitis, shingles, and others.
Skin that feels hot…. Latex allergies arise from an allergic reaction to products containing latex. Learn the signs and symptoms of latex allergies and how you can limit…. It sometimes develops as a side effect of intravenous immunoglobulin infusions, a type of treatment for certain immune system disorders and diseases.
Also known as scalp eczema or dandruff , this is a chronic condition in which white or yellow scaly patches of skin develop in oily areas, such as the scalp, the face, the ears, and the groin. Unlike other forms of eczema, seborrheic dermatitis is not a type of allergic reaction , and microorganisms that live on the skin such as some types of yeast can contribute to the condition. This itchy and inflammatory skin condition is known for the round spots or coin-shaped lesions that appear as a rash on the arms, legs, or trunk of the body.
Often, small blisters and scabs may develop. Nummular dermatitis , also known as discoid eczema, is more common in the elderly. Known also as venous eczema and gravitational dermatitis, this type of skin condition is caused by a circulation problem, often with the veins in the legs. If you can successfully avoid the irritants or allergens that trigger your symptoms, your skin will eventually clear up. If you have a severe episode of contact dermatitis and it covers a large area of your skin, a doctor may prescribe oral corticosteroids , but this is rare.
The best way to prevent contact dermatitis is to avoid contact with the allergens or irritants that cause your symptoms. If you cannot avoid contact, you can take steps to reduce the risk of the allergens or irritants causing symptoms, including:.
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