There are different causes of chronic cough, such as chronic bronchitis, gastroesophageal reflux disease, cough variant asthma, etc. It is necessary to follow the doctor’s instructions to choose the appropriate medication according to the cause of the disease. 1. Chronic bronchitis: if the patient is often exposed to dust or industrial exhaust, it will cause chronic inflammation of the mucous membrane of the trachea, bronchial tubes and their surrounding tissues, resulting in chronic cough. Patients can follow the doctor’s instructions to choose the oral solution of aminobromine hydrochloride and other drugs, can relieve the symptoms of cough. If there is already a combination of chronic obstructive pulmonary disease, it is also necessary to cooperate with inhaled bronchodilators, such as salbutamol and so on. 2. Gastroesophageal reflux disease (GERD): This is a condition in which the contents of the stomach rushes into the pharynx without nausea or exertion, causing symptoms of chronic cough. Patients can follow the doctor’s instructions to take the proton pump inhibitor omeprazole or gastric power drug mosapride and other drugs, can improve the symptoms of chronic cough. 3. Cough variant asthma: patients with airway hyperresponsiveness will have irritating cough when exposed to allergens, such as pollen and animal fur, which is one of the causes of chronic cough. Patients can follow the doctor’s advice to choose albuterol sulfate inhalation aerosol, salmeterol ticarcoson inhalation powder aerosol and other drugs, which can diastole airway, improve airway inflammation, and relieve the symptoms of cough. Chronic cough is caused by other diseases, it is recommended that patients with chronic cough in time to go to the hospital, clear cause, follow the doctor’s instructions for medication, can not be self-medication, so as to avoid the adverse effects of drugs.