Review Question - QID 210382

A 23-year-old man presents to his primary care physician with a runny nose, sneezing, and coughing that has persisted for a few months. He denies feeling weak or tired but his symptoms have disrupted his everyday life. He has no significant medical history and drinks alcohol occasionally on the weekends. His temperature is 98.6°F (37.0°C), blood pressure is 124/88 mmHg, pulse is 80/min, respirations are 13/min, and oxygen saturation is 98% on room air. A physical exam reveals a healthy young man who is repetitively blowing his nose. Percussion of his sinuses elicits no symptoms. Inspection of the patient's oropharynx is unremarkable. Which of the following is the most appropriate next step in management?