Cough is one of the most common symptoms for which a person sees their doctor. Some people seek medical attention after they've been coughing for days or weeks, while other people wait months or even years before going to the doctor. While the reason for a cough can usually be identified, and the cause treated, people with a chronic cough can be some of the most difficult cases to treat.
The most common reason for a chronic cough is due to post-nasal drip (frequent throat clearing). This may be caused by allergic rhinitis, non-allergic rhinitis, or even a sinus infection. The next most common cause is asthma, even if other symptoms such as wheezing are absent. Lastly, gastroesophageal reflux disease, even if classic heartburn symptoms are absent, is the third most common cause of a chronic cough.
If you, or someone you know, have a cough that won't quit, the following articles are a must-read: