Mucus is a thin, slippery fluid that lines the nose, throat, and other passages to trap dust and germs. Phlegm is a thicker type of mucus produced in the lungs to catch and remove harmful particles ...

"Hearst Magazines and AOL may earn commission or revenue on some items through these links." There’s no way around it: Coughing up phlegm feels gross, especially if you’re already dealing with other ...

Phlegm – sounds a bit gross, right? But this slimy substance is a star player in defending your body, storing enough to fill half a two-liter bottle of soda every day. If you’re looking for relief ...