A 42-year-old gay man sought care for a nonhealing lesion on his penis that he’d had for 6 weeks. The patient acknowledged having unprotected sex with several partners in the month prior to the onset of the lesion. The lesion was asymptomatic and small, but rapidly developed into a superficial ulcer. The examination revealed a 1-cm ulcerated, erythematous plaque with raised and indurated edges on the glans (FIGURE).There was minimal drainage in the periurethral area. The patient didn’t have any other rashes or lesions on the skin or mucous membranes, or any regional lymphadenopathies.
WHAT IS YOUR DIAGNOSIS? HOW WOULD YOU TREAT THIS PATIENT?