Symptom Checker: Symptoms & Signs Index
Medical Author: William C. Shiel Jr., MD, FACP, FACR
Cough is a rapid expulsion of air from the lungs typically in order to clear the lung airways of fluids, mucus, or material. Cough is also called tussis. Cough can be categorized as acute (less than three weeks) or chronic (greater than three weeks).
Medically Reviewed by a Doctor on 2/27/2012
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