There are many causes of babies who don’t cough during the day and cough in the middle of the night, and whether or not they can heal themselves is related to the triggers of the cough. Usually, the symptoms of babies coughing in the middle of the night and not coughing during the day are usually considered to be related to factors such as air, temperature, dust and sleeping position. Because babies’ respiratory organs are more sensitive than adults, some air pollutants can cause babies to cough constantly. In addition, during the day, the baby is in an upright position, activity and swallowing will reduce the mucus in the throat, but lying down in the state of the respiratory tract mucus accumulation will trigger coughing, strengthen the relevant care measures after the baby can be self-healing. If the cough is allergic, allergic rhinitis, or has bacterial infection, the baby needs to consult a pediatrician or respiratory physician, and it is usually more difficult to be cured on its own. You should pay attention to the air temperature and humidity in the bedroom and sterilize the air. If accompanied by phlegm, you can also take amoxicillin and other drugs for anti-inflammatory treatment, do not eat too greasy and too sweet food.