what causes phlegm
Mucus in the throat all the time is an annoying condition and the causes are the same as that of post nasal drip. Causes: Phlegm is produced as a result of an infection, an irritation to the throat, or a consequence of a serious disease or condition.Listed below are some of the causes of phlegm in adults and in children.emoving the root cause is the most effective way to reduce phlegm in throat. 1  Avoiding things that trigger phlegm formation in the throat such as smoking and irritants in the air (by avoiding places that are dust prone), and trying not to not strain the vocal cords by screaming or yelling helps reduce excess phlegm.