Contact Urticaria due to Sensitivity to Spray Starch
Abstract
Abstract Occasionally, agents that are applied to the skin produce an immediate wheal-and-flare reaction rather than the usual delayed-type hypersensitivity dermatitis. Open tests that are observed for 30 minutes detect the urticarial reaction, whereas standard closed patch tests that are removed after 48 hours are negative. In this article, we report contact urticaria due to sensitivity to formaldehyde and terpinyl acetate, which are found in a commercial spray starch. Report of a Case A...