Urticarial reaction of a serum-sickness type occurring after a definite incubation period is a well known complication of penicillin therapy. As described by Kolodny and Denhoff, 7 this reaction ...

The severity of a urticarial reaction to benzophenone may depend on the body surface area to which it is applied. A small and localized application may induce only a local contact urticaria ...

modifications of advice previously given or other data such as newly reported photosensitivity or contact urticarial reactions. For the updated allergens, only the new information is given ...