"Hearst Magazines and Yahoo 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 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 an ...

When you're sick you'll often produce more phlegm, and might notice it's thicker or a different color: white, green, yellow or maybe even brown. We all produce mucus, even when healthy. Mucus is a ...