If your mucus is gray or black... …you likely inhaled dark-colored particles, like smoke from a fire or heavy exhaust. Regular smokers can also blow out darker mucus because of the tar or other toxic ...

Struggling with clogged ears? Learn simple, effective methods for how to pop your ears and keep them clear, plus tips to ...

When a person has black or dark-colored mucus, they may have inhaled potentially harmful pollutants. Coughing up black mucus may also be due to an underlying infection or condition. Mucus serves ...

Should you spit out mucus, or is it better to swallow it? Does either method have any impact on your recovery? Here’s what ear, nose, and throat specialists had to say. Mucus is a substance ...