|Throat mucus, also known as phlegm, can be described as that uncomfortable feeling that you experience when mucus clogs up your throat or drips from the back of your nose. The glands of your throat and nose produce about 1 to 2 liters of mucus per day.
This mucus consists of cells that line the sinus passages and has several important functions. It moistens and cleanses the nasal passages, traps foreign particles, stops them from filtering into the respiratory system, fights infection and humidifies the air. Most times we are not even aware that we swallow mucus.