Phlegm that appears bright red, reddish, or rust-colored is a little bit more concerning. "If the color is reddish or rusty, ...

Black mucus is rare. It can be the sign of a fungal infection, or exposure to pollutants such as coal, dust or cigarette ...

Curious about your snot? Plenty of people take a peek at what winds up in their tissue after a good nose blow, but doctors say this curiosity can actually give you clues about your health. "Increased ...

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 ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

Being sick blows. Not only are you struggling to breathe, but you also have to worry about snot dripping down your nose. Even when you grab a tissue, there's always that morbid curiousity to look down ...