Mucus consists mainly of water and a gel-forming molecule called mucin. The body uses mucus to protect tissues, remove particles, and prevent infections. Mucus is essential for the functioning of many ...

Phlegm is naturally clear. So, if your phlegm is a different color, such as yellow or green, you may have a viral or bacterial infection. Brown, red, or black phlegm may be a sign of a more serious ...

Various home remedies can help manage phlegm and mucus, such as drinking plenty of fluids and using a saline nasal spray or rinse. If home remedies do not help, over-the-counter and prescription ...