Symptoms include pain and a chronic cough that produces mucus.

They produce mucus, which helps keep the inside of your nose moist.

It helps lubricate the eye by producing mucus and tears.

Cough, often producing mucus, also called sputum, from the lungs.

Even healthy people produce mucus to keep the airways moist.

Slugs also produce thick mucus which coats the whole body of the animal.

A cough that is new or persistent and produces mucus.

The function of this gland is to produce mucus.

The airways narrow and produce excess mucus, making it difficult to breathe.

At the same time, the body may produce extra mucus that clogs the airways.