Black mucus is rare. It can be the sign of a fungal infection, or exposure to pollutants such as coal, dust or cigarette ...

Medically reviewed by Jane Kim, MD Drinking plenty of fluids can help decrease the thickness of phlegm and make it easier to remove. Bloody, brown, white, yellow, or green phlegm may be a sign of an ...

Morning nasal congestion can signal allergies, sinusitis, dry air, GERD, or structural nasal issues. ENT experts say that ...

Although mucus and phlegm are related terms, they don't mean exactly the same thing. Karl Tapales via Getty Images Most people are all too familiar with the icky, uncomfortable feeling of having mucus ...

Mucus is a thin, slippery fluid that lines the nose, throat, and other passages to trap dust and germs. Phlegm is a thicker type of mucus produced in the lungs to catch and remove harmful particles ...

RELATED | Cystic Fibrosis is a genetic disorder that causes a build up of mucus in the lungs and other organs. KTXS spoke ...