Normally, mucus is clear. But during illness, it can acquire colour—yellow or green. Regardless of whether it is clear or ...

A hacking cough is the primary symptom of bronchitis, according to the NHS. “A distinguishing feature of a bronchitis-related ...

Learn why phlegm happens and discover gentler, everyday ways to remove it without resorting to loud “uncle coughs”.

Bronchitis is an infection that causes a cough. It happens when the tubes that carry air into the lungs, called the “bronchi,” get infected. Bronchitis usually oc­curs when a person gets a cold or the ...