Contact urticaria from an oxygen mask in a military pilot.

Contact urticaria is a transient, wheal-and-flare response at the site of contact with a substance. We report a case of a military fighter pilot, with a background history of seborrheic dermatitis and steroid-induced facial skin atrophy, who subsequently developed contact urticaria from an oxygen facemask. Skin protection products such as barrier creams were used to try and minimize the provocation of contact urticaria from the oxygen mask whenever he flew, but without success. He was eventually permanently restricted from flying fighter aircraft.