Epicutaneous testing

Epicutaneous testing, also known as patch testing, is a method used to identify substances that may cause allergic skin reactions. Small amounts of common allergens are applied to the skin, usually on the back, under patches. The patches stay in place for about 48 hours, and then the skin is examined for signs of allergy, such as redness or swelling. This test helps doctors determine specific allergies, like contact dermatitis from metals, fragrances, or other irritants, informing treatment and avoidance strategies. It’s a safe, non-invasive way to pinpoint allergic triggers affecting the skin.