The patch-test result was negative, but the photopatch-test result showed photoallergic contact dermatitis from 6-methylcoumarin (++ reaction) and usnic acid (+ reaction) on the irradiated side ...

Objective: To investigate possible photoallergic reactions in patients ... true delayed type IV hypersensitivity (allergic contact dermatitis and photoallergy) to sunscreens is more infrequent ...

A sun rash is an immune system reaction to sunlight exposure that causes itchy bumps, raised patches, or blisters on your ...

Throw dermatitis into the mix, and the frustration compounds. No one wants to go about the day dealing with an uncomfortable, itchy rash. Dermatitis refers to a number of skin conditions driven ...

Irritants such as detergents and bleach can cause irritant contact dermatitis. Allergic contact dermatitis happens due to an allergic reaction to a particular substance, such as poison ivy or nickel.

Perioral dermatitis can appear as a bumpy rash around the mouth. Doctors may recommend topical and oral medications to treat your symptoms. Perioral dermatitis is an inflammatory rash involving ...

What you probably don’t know is that she, along with 21 million people in the U.S. aged 12 and older, lives with atopic dermatitis, the most common form of eczema. That’s why Dr. Lee is ...

Eczema is an umbrella term for various inflammatory skin conditions, or dermatitis. Several types of dermatitis involve an overreaction from the immune system, but it is not an autoimmune condition.

Eczema, or atopic dermatitis, is a condition that causes patches of skin to become itchy and irritated. Treatments aim to hydrate the skin, reduce inflammation, and prevent infections. Researchers ...

Since I was born, I’ve had eczema all over my body and face. Eczema, a form of dermatitis, is a common skin concern affecting roughly 31 million people in the U.S. alone — about 10% of the ...