A cough that produces mucus or phlegm can reveal an underlying infection or condition. Learn about wet cough causes and how ...

A wet or productive cough brings up mucus, saliva, or other excretions; these coughs often happen when you have a respiratory infection like the flu. Dry coughs, on the other hand, don't bring up ...

While wet cough is associated with mucus production, a dry cough does not produce phlegm (mucus). Coughing multiple times a ...

Dear Dr. Roach: I have a dry cough that’s been going on for about 13-14 years. I’m a healthy 62-year-old and read that it is called “cough variant asthma.” I would like to know more about ...