A 9-year-old boy is brought to the physician by his mother for a 1-day history of dark urine. He has no past medical history. Vitals are within normal limits. Physical examination shows skin lesions on the chin. Auscultation of the chest is unremarkable. Which of the following is the most likely combination of hypersensitivity type experienced by this patient and the most appropriate pharmacologic treatment?
Type II; Cephalexin
Type II; Penicillin
Type III; Cefotaxime
Type III; Mupirocin
Type III; Nafcillin
