Erythematous papules on face and torso

Case #1

A 42-year-old African American man with no significant past medical history presents with a 3-week history of rash that began on his face and neck and spread to his chest. He denies any history of infectious or metabolic disease. He reports intense pruritus but denies fever and pain. Physical examination reveals erythematous, follicular papules and pustules distributed ...