kosketusallergia

Kosketusallergia, also known as allergic contact dermatitis, is a delayed hypersensitivity reaction of the skin. It occurs when the immune system overreacts to a substance that has come into direct contact with the skin, triggering an inflammatory response. This reaction typically develops 24 to 72 hours after exposure to the allergen.

Common allergens that can cause kosketusallergia include metals like nickel and cobalt, fragrances found in cosmetics and perfumes, preservatives in skincare products, certain plants such as poison ivy, and latex. The reaction is specific to the individual and the particular allergen.

Symptoms of kosketusallergia usually appear on the area of skin that came into contact with the allergen, but can sometimes spread. These symptoms include redness, itching, swelling, and the formation of small blisters. In more severe cases, the skin may become dry, cracked, and scaly.

Diagnosis of kosketusallergia often involves a thorough medical history and a physical examination. Patch testing is a common diagnostic tool, where small amounts of potential allergens are applied to the skin under a patch and monitored for a reaction.

The primary treatment for kosketusallergia is to identify and avoid the causative allergen. Topical corticosteroids are often prescribed to reduce inflammation and itching. In severe cases, oral corticosteroids may be used. Preventing future exposure is key to managing this condition and preventing recurrence.