Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Contact dermatitis is an inflammatory skin condition caused by direct contact with an allergen or irritant. It results in red, itchy, and sometimes painful rash.
5 Must Know Facts For Your Next Test
There are two main types: allergic contact dermatitis and irritant contact dermatitis.
Common allergens include nickel, fragrances, and certain plant oils like poison ivy.
Irritant contact dermatitis can occur after exposure to substances like detergents, acids, or solvents.
Diagnosis often involves patch testing to identify specific allergens responsible for the reaction.
Treatment focuses on avoiding the offending substance and using topical corticosteroids to reduce inflammation.