Children who do not cough during the day and cough at night can be seen in physiological phenomena and pathological conditions, and interventions need to be made according to the cause, such as cough variant asthma, which requires the use of budesonide and other treatments. 1. Physiological phenomenon: If the sleeping environment is warmer or the air is drier at night, children may experience the above phenomenon. Usually, the mental response is good and there is no other abnormal discomfort, so there is no need to use medication, and adjusting the indoor temperature and humidity as appropriate can alleviate the problem. 2. Pathological conditions (1) Respiratory tract infections: such as acute bronchitis caused by Mycoplasma pneumoniae infection, it is easy to cough at night, mostly dry cough, and some children may have fever, perfect Mycoplasma pneumoniae antibody test can help diagnosis, and the treatment needs to use macrolide antibacterial drugs, such as azithromycin or erythromycin, and other treatments. (2) Cough variant asthma: coughing for a long time, easy to appear at night or after activities, can be manifested in the above phenomenon, improve the lung function test can assist in the diagnosis, the treatment needs to be oral montelukast and the use of budesonide nebulization and other treatments, and follow up with the doctor’s prescription medication. The above medications should be used under the guidance of a physician. It is recommended to consult a specialist for evaluation and treatment. Children do not cough during the day and sleep cough at night may also have other causes, it is recommended to go to the hospital, complete the examination to determine the cause of the disease, and then give targeted treatment or treatment.