Add Yahoo as a preferred source to see more of our stories on Google. Even if it is kind of gross when you're full of it and wrestling with it, phlegm actually serves a useful purpose: The thick, ...

Mucus production is natural. However, overproduction of mucus in the throat can lead to long-term coughing and throat irritation. Certain conditions and factors can lead to an excess of mucus, such as ...

Mucus is a slippery, protective substance that keeps your airways, throat, and digestive tract moist, trapping and clearing out dust, allergens, and germs to help protect against irritation and ...

"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 ...

When you breathe, allergens, viruses, dust, and other debris stick to your nasal mucus, which then passes out of your system. Sometimes, your body can make too much throat mucus, requiring frequent ...