Coughing up phlegm when you don’t have a cold could be due to a number of different conditions: a sinus infection, allergies with postnasal drip, pneumonia, smoking, asthma, heartburn, or even some medicines like angiotensin-converting enzyme (ACE) inhibitors for high blood pressure. If you've had a cough for more than two weeks, call your doctor.
- Q What tests will diagnose why I have shortness of breath (dyspnea)?
- Q How do people with lung disease know they need oxygen?
- Q Can donor lungs be excluded from transplant based on the cause of death?
- Q What diseases affect the lungs?
- Q What is intercostal breathing?
- Q Why shouldn't I neglect to treat small breathing problems?