A 25-Year-Old With Widespread Skin Lesions

A man taking no regular medications had 1 month of small painless facial papules progressing over 1 week to vesicles and pustules. He reported unprotected sex with multiple partners and recent exposure to a person with active tuberculosis; rapid plasma reagin titer was normal; results of HIV and fluorescent treponemal antibody absorption tests were positive. What is the diagnosis and what would you do next?