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.

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

Why Is My Mucus Yellow? Yellow mucus is a common symptom that occurs when your body is fighting a cold, sinus infection, or other respiratory issue. Its yellow color appears as white blood cells move ...

Your body produces mucus naturally to protect your respiratory system, and under normal circumstances, this protective fluid remains clear and relatively thin. However, when mucus suddenly changes to ...

When you’re sick, you’ll often produce more phlegm, and might notice it’s thicker or a different colour: white, green, yellow or maybe even brown. What can this phlegm – also called mucus, snot, ...

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 ...

Cystic fibrosis affects many parts of the body, but its effects on the lungs can be especially harmful. Cystic fibrosis is a chronic and progressive condition that causes the mucus in your lungs to be ...

Coughing is a reflex that typically serves as a defense mechanism to clear the airways of irritants or secretions. (Fun fact: Coughs can propel air and particles out of the lungs and throat at speeds ...

Get inspired by a weekly roundup on living well, made simple. Sign up for CNN’s Life, But Better newsletter for information and tools designed to improve your well-being. Every time I get the sniffles ...

This chronic lung condition causes your airways to become permanently widened and scarred. Learn how to spot and treat this ...