The most effective treatment for cough does not exist, but is mainly aimed at the causes of bronchitis, cough variant asthma and upper respiratory tract infections. 1. Bronchitis: Coughs caused by bronchitis, such as dry cough can be treated by dextromethorphan, pentoxyverine and other cough suppressants. If there is a basis for bacterial infection, such as coughing yellow sputum, can use amoxicillin, azithromycin and other drugs anti-infection treatment. 2. Cough variant asthma: often manifested as irritating dry cough, usually using inhaled glucocorticoids combined with adrenergic receptor antagonists such as budesonide formoterol powder inhaler to alleviate symptoms. 3. Upper respiratory tract infections: often caused by viral infections, if the symptoms are mild, usually do not need to use medication, can drink more water, pay attention to rest and other general treatment. If symptoms are severe, dry cough can be treated with cough suppressants such as dextromethorphan and pentoxyverine, and cough with phlegm can be treated with aminoglutethimide and bromhexine to reduce phlegm. Cough can also be caused by other diseases, such as heart failure, gastroesophageal reflux disease. If the cough is not relieved or aggravated, it is recommended that the patient go to the hospital for a comprehensive examination to clarify the cause of the disease and to intervene in a timely manner in order to avoid delays in the treatment of the disease.