Mucus isn't exactly something people give much thought to — until they're sick and dealing with a constantly runny nose. But mucus is actually an important part of a healthy immune system, according ...

If you’re blowing your nose regularly, it’s hard not to notice your mucus—and what color it is. So it can also be alarming if you happen to spot yellow, brown, bloody, or green mucus in your used ...

Medically reviewed by Susan Russell, MD Key Takeaways Coughing up white mucus can be a sign of an upper respiratory infection ...

Americans are weathering the worst flu season in years, as a number of other respiratory illnesses circulate too, such as COVID-19, RSV and the common cold. A telltale sign you’re getting sick is ...

It’s snot a laughing matter. The color of nasal mucus can help show what state of health a person is in, according to ear, nose and throat specialist Dr. Raj Sindwani of the Cleveland Clinic. “If your ...

When you're sick you'll often produce more phlegm, and might notice it's thicker or a different color: white, green, yellow or maybe even brown. Subscribe to our newsletter for the latest sci-tech ...

DEAR DR. ROACH: Colds and flus seem to linger in my lungs and nose for a week or more after all other symptoms have passed. If my phlegm and mucus are clear or white and I otherwise feel healthy, am I ...

It is that time of year and everyone seems to have a cold, including me!! I am actually "on" my second cold, so I am feeling like a toddler who gets sick every two to three weeks. Maybe I should look ...

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 ...