It contains a wealth of powerful molecules called mucins that help to tame microbes and prevent infection. In a new study, ...

Dear Dr. Roach: I am an 103-year-old woman with a medical problem that I hope you can help me with. I cough up a lot of mucus every day, which is clear with no discoloration. The cough can start at ...

A dry cough doesn't produce mucus or phlegm, unlike a wet (productive) cough. A tickling or scratchy sensation in the throat prompts a cough. A natural reflex, it helps protect your airways and lungs ...

DEAR DR. ROACH: I am an 103-year-old woman with a medical problem that I hope you can help me with. I cough up a lot of mucus every day, which is clear with no discoloration. The cough can start at ...

Coughing up phlegm after eating can be a sign that the act of eating is irritating or triggering something in the digestive system. Possible causes include food allergies, aspiration, or GERD. Phlegm ...

MIT researchers identified mucins that defend against Salmonella and other bacteria that cause diarrhea. They now hope to ...