Coughing is the body's way of keeping the throat and airways clear. It can be chronic or acute. Chronic coughing can be due to asthma, COPD, cold, flu or smoking.
Treatment for cough includes taking medication. Common drug classes used to treat cough are antihistamine / non-narcotic antitussive combinations, antihistamine / opioid combinations, non-narcotic antitussives, opioid / anticholinergic combinations, opioid / phenothiazine combinations, expectorants, expectorant / opioid combinations, expectorant / opioid / sudafed combinations, expectorant / non-narcotic antitussive combinations, and antihistamine / opioid / sudafed combinations.