Mucus does more than cause congestion. It is highly beneficial to our health, trapping pathogens and protecting the body from infection. But a recent post on Instagram claims mucus has no benefits.

Post-nasal drip occurs when mucus moves down your throat, causing irritation and cough. Here’s how medical professionals say you can stop it in its tracks.

Healthy phlegm is usually clear and runny, but many different health conditions can change the consistency or color. Phlegm, also called sputum, is mucus produced by your lungs that helps protect your ...

Bloody boogers form when blood mixes with mucus in the nose and the mucus dries. Various causes may include nose-picking or ruptured vessels. The nose lining is delicate and rich in blood vessels, and ...

Phlegm buildup in the lungs and throat is a common problem, especially during colds, allergies, pollution exposure, or respiratory infections. Phlegm is a thick mucus produced by the respiratory ...

Coughing is a natural reflex for clearing the throat and lungs of irritants. Infection is a common cause of a dry cough. Other possible causes include postnasal drip, asthma, idiopathic pulmonary ...

Your cough can taste bad for many reasons. When a metallic taste is paired with coughing, you may have an upper respiratory infection like a cold. This can cause your phlegm to contain traces of blood ...

Think cold weather makes you sick? Learn what really causes winter illness—and why that drippy cold‑air nose is usually ...