Dry cough at night need to clarify the causes of dry cough, such as chronic pharyngitis, bronchitis, cough variant asthma and other diseases caused by the cause of the drug treatment can be given. 1 chronic pharyngitis: chronic pharyngitis is a chronic inflammatory reaction in the throat area, after being stimulated by cold air at night, irritating cough may occur. May follow the doctor’s instructions to use compound borax solution, furacilin solution, compound chlorhexidine gargle solution and other gargles. 2. Bronchitis: If bronchitis causes dry cough at night due to edema and congestion of bronchial mucosal tissues, strong cough suppressants can be used to relieve the cough, such as dextromethorphan, codeine phosphate and so on. If there is a basis for bacterial infection, antibiotic treatment can be used, such as azithromycin, cefixime and other drugs. 3. Cough variant asthma: it is a kind of airway hyperresponsive disease, with cough as the only symptom, often manifested as nocturnal cough or worsening cough symptoms at night. Inhalation of budesonide formoterol powder inhaler relieves symptoms in most patients. Nocturnal dry cough can also be caused by other diseases, such as gastroesophageal reflux disease and cardiac insufficiency. If the symptoms are not relieved or aggravated, it is recommended to consult a doctor in time, improve the examination, and follow the doctor’s prescription after clarifying the cause of the disease.