While occasional brown phlegm can be harmless, it should not be ignored, especially if it keeps coming back or is getting worse.

It can be hard to decipher when you or your children are suffering from allergies or something more serious. When should you go to the doctor? When should you take medicine, and what should you take?

Different types of coughs and accompanying symptoms might give an indication of what might be causing it.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." It’s never any fun feeling under the weather, but when a common cold is paired with excess phlegm, it ...

A cough that produces mucus, or phlegm, is known as a wet — or productive — cough. Producing mucus while coughing is typically a response to allergens and irritants, airway infections, or an ...

Add Yahoo as a preferred source to see more of our stories on Google. The color of your mucus can reveal some surprising things about your health. (Photo: Getty Images) (Getty Images/iStockphoto) ...

Often, other factors are also at play. "Please see a doctor," says Green, "if your cough lasts more than seven to 10 days, ...

Managing mucus from COPD involves strategies that can help loosen mucus and clear it from your airway, such as staying ...

Mucus isn't exactly something people give much thought to — until they're sick and dealing with a constantly runny nose. But mucus is actually an important part of a healthy immune system, according ...