Cutaneous drug eruptions

A drug-induced cause should be considered by the veterinarian when presented with any dermatosis and, in particular, those dermatoses that seem to have an underlying immunologic mechanism. A detailed history should be taken and a thorough dermatologic examination always performed. Biopsy submitted for histologic assessment can be a valuable aid to arriving at a diagnosis. Ultimately, response to withdrawal of the drug causing resolution of the dermatosis would confirm the diagnosis of a drug eruption.