Clinical Challenge: A Sudden, Blistering Rash

A 47-year-old man presents for evaluation of a rash. The rash developed 24 hours after perioperative administration of vancomycin following a gunshot wound to the abdomen. The patient reports that the rash is itchy. Physical examination revealed tense bullae with an erythematous base in the axillae and groin, bilaterally, as well as on the glans penis and oral mucosa in ...