Coughing is an important way to keep your throat and airways clear. But too much coughing may mean you have a disease or disorder.
Some coughs are dry. Others are productive. A productive cough is one that brings up mucus. Mucus is also called phlegm or sputum.
Coughs can be either acute or chronic:
- Acute coughs usually begin rapidly and are often due to a cold, flu, or sinus infection. They usually go away after 3 weeks.
- Subacute coughs last 3 to 8 weeks.
- Chronic coughs last longer than 8 weeks.
Chung KF, Mazzone SB. Cough. In: Broaddus VC, Mason RJ, Ernst JD, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine. 6th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 30.
Kraft M. Approach to the patient with respiratory disease. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 83.