There are various kinds of phlegm cough medicine that you can get, both from natural ingredients and those that come from a doctor's prescription. What are the medicines to relieve cough with phlegm? Check out the following explanation. Coughing is the body's natural mechanism to cleanse the respiratory tract. Phlegm coughing occurs when the cough is accompanied by mucus or mucus. There are many factors that can cause coughing up phlegm, ranging from viral or bacterial infections in the upper respiratory tract, exposure to pollution, cigarette smoke, to more serious medical disorders, such as asthma, tuberculosis, pneumonia, and bronchitis. Therefore, you must immediately overcome the cough with phlegm so that the condition does not get worse. Natural Phlegm Cough Remedy Here are some natural phlegm cough medicines that can be used to relieve your condition, namely: Water One of the natural phlegm cough medicines that is most easily obtained and effective is water.