An Adult With a 10 Day History of Cough

A 28‑year‑old male non‑smoker with no chronic health problems presents with a 10‑day history of persistent cough that's worse at night, stating, "I started with a head cold about two weeks ago. The cold moved into my chest." He reports mild chest discomfort with deep cough, rare production of small amounts of clear to white sputum, and feels tired because, "the cough keeps waking me up." He denies sore throat, fever, ear pain, shortness of breath, or GI symptoms. Objective temp 97.6, heart ra...