(HealthDay News) -- Frequent coughing is a sign of an illness, allergen or exposure to something that's irritating your lungs.
Here are suggestions to help tame the hacking, courtesy of the U.S. National Heart Lung and Blood Institute:
How Would an FDA Ban on Popular Cold Meds Affect Americans?
FDA Proposes Ban on a 'Useless' Decongestant, Phenylephrine
Sleepy Nurses Vulnerable To Common Cold, Other Infectious Diseases