[Airborne allergic contact dermatitis].

In this case report, a 25-year-old woman presented with contact dermatitis caused by airborne exposure to isothiazolinones in paints. Allergic contact dermatitis is most frequently caused by direct contact with a product containing an allergen. However, in rare cases, allergic contact dermatitis can be caused by airborne exposure to an allergen. This report highlights the importance of considering airborne exposure in patients with unexplained dermatitis.