Blistering rash in the groin

Case #1

A man, aged 64 years, presented with pruritic blisters in the groin and bilateral axillae. The blisters began two weeks ago during a hospital stay in which he received IV vancomycin (Vancocin) for an infection. No oral erosions were reported. The man was not currently taking any medications. Physical examination revealed tense serous and hemorrhagic bullae on an erythematous ...