Once you understand what's behind your cough, choosing the right treatment becomes much easier.

Some people continue coughing after they recover from a common respiratory infection. Doctors explain why a cough can last for weeks, masking etiquette and red flags suggesting something more serious.

Coughs are common and usually no cause for concern. Here's how to know when it's time to seek medical advice. (Getty Images) There are many reasons adults develop a cough, especially during winter, ...