A 34-year-old man presents to a walk-in clinic with a 10-day history of cough, productive of small amounts of clear to yellow sputum, and occasional wheeze that he notices after coughing spells. He has had no fever, chest pain, hemoptysis or shortness of breath at rest. He had a runny nose and sore throat at the onset of illness, which have resolved. He smokes 10 cigarettes per day, takes no regular medications and has no allergies. On examination he looks well, and the chest is clear to auscultation with no wheeze, including on forced expiration. Oxygen saturation, vital signs and the rest of the examination are normal.
| Heart rate | 78/min |
| Respiratory rate | 16/min |
| Temperature | 36.9 °C |
| O2 saturation | 98%, room air |
| Blood pressure | 122/76 mm Hg |
Question 1 of 9
Which one of the following is the most appropriate management at this time?
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