A 17-year-old girl presents to the clinic for follow-up. She…
A 17-year-old girl presents to the clinic for follow-up. She was seen for a fever, sore throat without cough, tonsillar enlargement, and lymphadenopathy 2 days ago. She was diagnosed with strep throat and given amoxicillin. Last night, she noticed a small maculopapular rash across her trunk, which then spread diffusely across her body. Vital signs include BP 108/66 mm Hg, HR 82 bpm, RR 18/min, and T 100.9°F. Physical exam shows continued tonsillar enlargement, cervical lymphadenopathy, and a diffuse maculopapular rash sparing the face, palms, and soles of her feet. Which of the following is the most appropriate treatment for this patient?