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A 68-year-old man developed an erythematous, papular, pruritic rash on his right thigh 1 month prior to presentation. It subsequently spread to his other extremities and trunk. ⋯ He had a history of relapsing polychondritis for which he was prescribed infliximab and low-dose prednisone. He had never smoked tobacco, did not use alcohol or illicit substances, and had no significant travel history.