If your mucus is gray or black... …you likely inhaled dark-colored particles, like smoke from a fire or heavy exhaust.

This cold and flu season, you may be looking for clues you're getting better anywhere you can find them, even in the color of ...

Nasal discharge that is yellow, green or brown can be a sign of an infection ... While the color of the mucus does not distinguish between a viral or a bacterial infection, several other signs ...

When a white blood cell finds a germ, it latches onto it. Then it changes its shape to surround the germ. You can imagine the ...

A stuffy nose can cause a lot of discomfort However most of the time it does not require medical attention and resolves on ...

A lot of people think yellow or green snot means you need an ... as often as you want -- help moisturize your nasal passages and keep that mucus thin. Michael Smith, MD Nasal Irrigation is a ...

It’s that time of year again, when everyone’s fighting a cold and blowing their nose. Maybe you’ve found yourself having sinus struggles, or you’ve noticed your boogers don’t look “normal.” Whatever ...

In a typical viral respiratory infection, such as the common cold, mucus in the nose starts out as clear but gradually turns yellow or green as the infection progresses. So essentially ...