Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

Phlegm is naturally clear. So, if your phlegm is a different color, such as yellow or green, you may have a viral or bacterial infection. Brown, red, or black phlegm may be a sign of a more serious ...

Whether you're dealing with a runny nose, cough or congestion, your mucus can help determine if it's a minor bother like a ...

As the icy weather approaches, many start coughing and spluttering while they battle winter colds and flu. Although for most coughing up mucus is part of the cold season, coloured phlegm can be a sign ...

Snot is produced by glands in your nose and throat. It helps to hydrate your sinuses and trap dust and pathogens, preventing them from entering your body. Snot, or nasal mucus, is a helpful bodily ...