A 35-year-old woman who recently returned from Africa presents to the clinic with complaints of a rash. During her trip, she developed an itchy rash on both arms. She has an unremarkable medical history. Medications recently taken include chloroquine for malaria prophylaxis. Examination discloses multiple small violaceous papules on the flexor surfaces of the arms. The lesions have angular borders and flat tops. Some of the lesions have minute white streaks on the surface, barely visible to the naked eye