Contact dermatitis is inflammation of the skin caused by direct skin exposure to a substance. The dermatitis may either be allergic- or irritant-induced.
Contact dermatitis is inflammation of the skin caused by direct skin exposure to a substance. The dermatitis may either be allergic- or irritant-induced.
In allergic contact dermatitis, an allergen induces an immune response. Irritant contact dermatitis, in which the trigger substance itself damages the skin, accounts for 80 percent of dermatitis cases.
The diagnosis of contact dermatitis is made based on the patient’s history and physical examination. In chronic cases, patch testing is necessary to identify specific allergens.