Allergic drug reactions.
D004342:Drug Hypersensitivity; D064420:Drug-Related Side Effects and Adverse Reactions; D006801:Humans; D006967:Hypersensitivity; D007154:Immune System Diseases; D012871:Skin Diseases / Q000209:etiology*
ALLERGY; DRUGS/injurious effects; SKIN DISEASES/etiology and pathogenesis