Review Question - QID 210615

A 65-year-old man presents to his primary care physician for a rash. He states that for the past several days he has felt burning and itching around his eye. Yesterday, he noticed that a rash had formed. A review of systems is notable for mild diarrhea for the past week. The patient has a past medical history of diabetes, asthma, seasonal allergies, and hypertension. He is not currently taking any medications. His temperature is 98.6°F (37°C), blood pressure is 125/65 mmHg, pulse is 80/min, respirations are 14/min, and oxygen saturation is 98% on room air. A physical exam is notable for a vesicular rash surrounding the orbit. Which of the following is the most appropriate next step in management?