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.
Causes. Pharyngitis is caused by swelling in the back of the throat (pharynx) between the tonsils and the (larynx). Most sore throats are caused by colds, the flu, coxsackie virus or mono (mononucleosis). Bacteria that can cause pharyngitis in some cases. 1  Strep throat is caused by group A streptococcus.