A cough that lingers after a cold or the flu is usually not something to worry about. Known as a post-infectious or post-viral cough, this lingering cough affects 11% to 25% of adults who have ...

It can occur with the common cold, sinusitis, or pneumonia, as well as conditions like asthma and cystic fibrosis (CF). Symptoms associated with thick mucus vary but may include fever, cough, ...