Contact dermatitis often occurs in relation to a chemical burn or irritant, but it can occur for other reasons. Learn about the triggers and treatments for the condition.

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People with photoallergic contact dermatitis, or photocontact dermatitis, develop rashes in sunlight. Photocontact dermatitis is a type of allergic contact dermatitis.

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 ...

Plus, a small number of people experience photoallergic contact dermatitis, a skin reaction that occurs when the sun activates an ingredient found in sunscreen, perfume, or medication. [ 1 ] ...