When phlegm is discharged after each meal, clinically, it is most common to have chronic pharyngitis and chronic bronchitis. After a meal, the body temperature rises, airway secretions become loose, and there is a swallowing action of the throat. When this action is performed frequently, it will induce different degrees of congestion and edema in the throat as well as the airway and upper airway, causing an acute attack of chronic inflammation, which leads to the exudation of inflammatory secretions. Therefore, there will be sputum discharge after each meal. Clinically, we can test the blood routine and take a CT of both lungs if necessary to clarify the condition and the cause of the disease, so as to provide timely symptomatic and etiological treatment. Generally, expectorant and phlegm-eliminating drugs can be chosen, such as clearing lung and phlegm-eliminating cough granules, snake bile Chen Pi San, and snake bile Chuan Bei Liquid. For bacteria, antibiotics, such as penicillin, can be used appropriately.