Frequent cough needs to clarify the etiology, such as respiratory disease, cardiovascular disease, pleural disease and physiologic cough, etc. According to the etiology of anti-infection, anti-heart failure and other treatments. 1. Respiratory diseases: Common respiratory diseases that cause coughing include laryngitis, bronchitis, bronchodilatation, bronchial asthma, tuberculosis and lung tumors. If there is bacterial infection, anti-infection treatment is needed, such as taking antibiotics such as amoxicillin, anti-tuberculosis treatment for Mycobacterium tuberculosis infection, such as taking isoniazid, rifampicin and other drugs. If a lung tumor is present, surgery is necessary. At the same time, it should be treated with cough and phlegm medicines, such as Ambroxol dispersible tablets, strong loquat lozenges and other symptomatic treatments. 2. Cardiovascular disease: when mitral stenosis and left heart failure, resulting in pulmonary stasis, causing cough and phlegm symptoms, then need to be treated with anti-heart failure therapy, such as oxygen, digitalis and other drugs. 3. Pleural disease: due to pleurisy, spontaneous pneumothorax, etc., at this time the need for anti-infective treatment, such as penicillin. 4. Physiological cough: due to psychological factors leading to coughing, need to exclude other organic lesions before diagnosis. Cough needs to be examined immediately in the hospital, to clarify the cause of the disease, to be targeted treatment.