Contact dermatitis developed in a golfer who had allergic sensitization to a thiram fungicide used on the golf greens. Thiram and related compounds are components of numerous fungicides, insecticides, seed disinfectants, larvacides, germicidal soaps, lotions, ointments, rubber goods, and disulfiram (Antabuse). Ethanol-sensitization reactions also occur; in contrast to the reported eczematous contact sensitivity, these are nonallergic in nature. They include erythema, urticaria, and pruritus developing shortly after alcohol is taken by persons who ingest disulfiram or have topical exposure to thiram.