Fotóallergia

Fotóallergia, also known as photoallergic dermatitis or photodermatitis, is a type of skin reaction that occurs when the skin is exposed to certain substances, known as photosensitizers, which are then activated by sunlight or artificial light. This condition is more common in individuals with fair skin, light hair, and blue or green eyes. The most common cause of fotóallergia is the use of certain medications, such as sulfa drugs, tetracyclines, and antimalarials. Other triggers include plants, such as poison ivy, and certain foods, like shellfish.

Symptoms of fotóallergia typically appear within 10-30 minutes after exposure to sunlight or artificial light and may include redness, itching, swelling, and blisters. The affected area may also become painful and may peel or crust over time. The severity of the reaction can vary from mild to severe, and in some cases, it may lead to scarring.

Treatment for fotóallergia focuses on avoiding the trigger substance and protecting the affected skin from sunlight. This may involve wearing protective clothing, using sunscreen, and avoiding artificial light sources. In severe cases, topical corticosteroids or other anti-inflammatory medications may be prescribed. It is important to consult a healthcare professional for proper diagnosis and treatment.