A 60-year-old man comes to your office because of a persistent cough that has been bothering him for the past 3 months. His cough is dry and is more frequent during the evenings. He also notes frequent nasal congestion, especially when he is exposed to dust and cold weather. He reports no hemoptysis, weight loss, wheezing, fever, or changes in his appetite. What additional questions would you ask to learn more about his cough?
Case and Discussion