Children always cough at night and do not cough during the day may be related to cold and dry air, etc., to keep warm and diligent ventilation and so on. 1. Cold: children can be cold due to weather changes that lead to coughing during the day and coughing at night, it is important to pay attention to the child to keep warm, so that the symptoms of coughing at night will be relieved. 2. Dry air: children always cough at night and do not cough during the day may also be caused by dry air, some parents are afraid of children catching a cold at night, the doors and windows closed tightly, resulting in dry indoor air, the child is very prone to coughing manifestations, it is recommended that parents open the windows a little bit at night, to enhance the circulation of air. If the child’s symptoms are not relieved, it is recommended that parents take the child to the hospital for examination in a timely manner to clarify the cause of the disease.