Children cough at night: I. It may be due to improper lying down, which leads to poor breathing in the lungs and bronchi and symptoms such as coughing, breath-holding and watery eyes. Second, due to inflammation of the trachea and throat caused by the child’s cold and upper respiratory tract infection, secretions in the trachea cannot be discharged during nighttime rest, which can easily lead to secretions irritating the throat and repeated coughing symptoms. Third, the indoor air is not ventilated, the air is dry, and the doors and windows are closed tightly when sleeping at night, resulting in cloudy indoor air and inducing allergic cough in children. Try not to turn on the air conditioner for a long time while sleeping at night to avoid drying out the indoor air. Put your child’s pillow up higher at night to minimize the number of coughs. Keep the room air circulating, don’t be overly confined, and don’t light mosquito coils etc. to avoid irritating smells. Drink plenty of warm water, and if your child has respiratory tract inflammation, treat it with anti-inflammatory and cough suppressant medication in a timely manner.