There are many reasons why children cough at night, which may be caused by dry room air, respiratory diseases, allergic diseases and many other reasons. Targeted treatment should be carried out according to the causes, including improvement of the environment and medication. 1. Dry air: If the cough symptoms are mild and less frequent, the cough may be caused by dry room air that stimulates the respiratory tract, which should improve the indoor air, often open the windows, and use an air humidifier. 2. Respiratory diseases: such as pharyngolaryngitis, bronchitis, pneumonia, etc., mostly caused by bacterial or viral infections, in the cough at the same time there can be nasal congestion, runny nose, fever and other manifestations, can be exacerbated at night. In addition to general supportive treatment, if there are bacterial infections, antibiotics can be used for anti-infective treatment, such as levofloxacin, etc.; viral infections are generally supportive treatment. 3. Allergic diseases: such as allergic rhinitis, bronchial asthma, etc., commonly occur after contact with allergens, which can lead to worsening cough at night. First of all, we need to avoid contact with allergens, can use cetirizine, nebulized inhalation of glucocorticosteroids such as dexamethasone and other drugs to alleviate coughing and treatment purposes. If a child’s nighttime cough does not resolve for a long time, he or she should go to the hospital in a timely manner to identify the cause of the cough, and under the guidance of the doctor, carry out targeted treatment. All of the above drugs should be used under the guidance of a doctor.