Phlegm cough is one sign of a bacterial or viral infection in the respiratory tract. If not resolved, coughing up phlegm can disturb your rest and activities. Coughing itself is the body's defensive reaction to expel foreign objects that irritate or infect the respiratory tract. The foreign object can be dust, bacteria, or viruses. One type of cough is phlegm coughing which produces mucus. Usually this type of cough occurs when you have a cold or throat infection. When you experience a cough with phlegm, you may feel that mucus is stuck or congested in the back of your throat or chest. Now, with a cough, the body tries to expel the mucus through the nose or mouth. The goal is to keep the respiratory tract clean so that you can breathe more comfortably. Immediately treat cough with phlegm Based on the time period, both cough with phlegm and dry cough can be categorized as acute and chronic. An acute cough can last less than three weeks, while a chronic cough can last more than...