MYTH: Food can be left at room or outdoor temperature for more than two hours. REALITY: Because bacteria grow rapidly in the danger zone between 40 degrees F and 140 degrees F, food left at room temperature for more than two hours should be discarded.
Postnasal drip also commonly causes excess mucus at the back of your nose and throat many times after eating. Excessive, thick phlegm or chest mucus can often be caused by viral or bacterial infections such as influenza, bronchitis and pneumonia, as well as irritants such as those inhaled during smoking. Chemotherapy also causes the immune system to overreact and excessive phlegm is often the result.
While chronic phlegm does become a serious cause for worry for many, the truth is that there are a number of reasons for phlegm or excessive mucus in throat. For some, it may just be a case of morning reflux, with no excessive production of flem during the rest of the day.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.