"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 ...

Medically reviewed by Mary Choy, PharmD Key Takeaways Thick mucus in the throat can result from infections like colds or ...

If you’ve ever fought a cold or infection in the past, chances are you’ve had the not-so-pleasant experience of coughing up green phlegm. Along with a runny nose and sore throat, green phlegm is ...

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 ...

Coughing is a reflex that typically serves as a defense mechanism to clear the airways of irritants or secretions. (Fun fact: Coughs can propel air and particles out of the lungs and throat at speeds ...

Healthy phlegm is usually clear and runny, but many different health conditions can change the consistency or color. Phlegm, also called sputum, is mucus produced by your lungs that helps protect your ...

Coughing is one of the body’s most essential protective reflexes, designed to remove foreign irritants like dust, bacteria, and viruses from the airways. While it serves a critical role in keeping us ...

Your body produces mucus naturally to protect your respiratory system, and under normal circumstances, this protective fluid remains clear and relatively thin. However, when mucus suddenly changes to ...