Cough may be caused by respiratory infections (such as pneumonia, bronchitis, etc.), airway hyperreactivity (such as cough variant asthma), lung cancer, gastroesophageal reflux, medications (such as captopril), etc. Depending on the cause, it can be treated with antibiotics, antiviral medications, antiallergic medications, acid suppressants, stopping certain medications, and surgery. 1. Respiratory tract infections: such as pneumonia, bronchitis, if it is caused by bacterial infection, the treatment is mainly to follow the doctor’s advice to choose sensitive antibiotic treatment, such as levofloxacin, ceftriaxone and so on. If it is viral infection, use ribavirin and other antiviral treatment. 2. Airway hyperreactivity: such as cough variant asthma, the treatment is mainly anti-allergy (loratadine, etc.) medication, anti-inflammatory (such as nebulized inhalation budesonide, oral prednisolone tablets, etc.), and antitracheal spasm (such as oral aminophylline tablets, etc.) treatment. 3. Lung cancer: Lung cancer is treated with radiotherapy or surgery according to the pathological type and location of the tumor. 4. Gastroesophageal reflux: it can be treated with oral acid-suppressing drugs (e.g. omeprazole) and gastric stimulating drugs (e.g. domperidone). 5. Drug reaction: long-term use of angiotensin-converting enzyme inhibitors (such as captopril) caused by cough, can use other alternative drugs (such as valsartan instead of captopril for hypertension) cough can be relieved on their own. There are many reasons for coughing, you need to go to the hospital to find out the cause of the disease, under the guidance of the doctor to choose the correct drug treatment, do not arbitrarily use drugs to stop coughing treatment, in order to avoid adverse reactions. All of the above drugs must be alert to the side effects of drugs, and under the guidance of professional physicians and pharmacists.