Frequent phlegm coughing needs to be treated according to the causes of coughing, such as smoking, lung infections, chronic lung diseases, etc. Smoking cessation, anti-infective and phlegm treatment should be carried out respectively. 1. Smoking is a common cause of phlegm coughing. The fundamental measure is to quit smoking as soon as possible in order to minimize phlegm secretion and improve phlegm coughing symptoms. 2. Lung infections, due to bacterial and viral infections, can cause damage to the mucous membrane of the trachea and bronchial tubes and increase sputum secretion. Antibiotics such as cefoperazone sulbactam sodium can be selected according to the results of sputum culture to control the infection. 3. Chronic lung diseases, such as chronic bronchitis, chronic obstructive pulmonary disease, etc., can use Ambroxol for sputum treatment. Frequent sputum also need to pay attention to except nasal secretion backflow stimulation of the throat caused by coughing, coughing sputum, but also to pay attention to except lung diseases such as bronchial dilatation, lung tumors, etc., the specific causes need to be clarified by the medical examination, and at the same time, according to the doctor’s instructions for treatment.