Allergic contact dermatitis is an irritation of the skin caused by a direct contact with a foreign substance termed as primary irritants.

Symptoms can include a rash, blisters, itching and burning. These symptoms can appear within minutes of exposure and fade away within minutes to hours or may take several days to weeks to heal.

Many substances can cause such reactions, including cosmetics, hair dye, fragrances, laundry detergents, nickel and latex.