Many parents report that their child has a bad cough at night and are very worried about it. There are many reasons why children cough at night, and it is important to know the cause so that you can treat it properly. 1. Coughing caused by disease If your child coughs frequently at night, you should first consider whether your child has a health problem. Some respiratory illnesses can cause children to cough badly at night. These respiratory diseases include upper respiratory tract infections, throat diseases and bronchial diseases. If your child has a cough that persists at night, it is important to go to the hospital to see if it is caused by a respiratory disease. 2. Cough caused by lack of air circulation Many parents are afraid that their children will get cold and keep the doors and windows closed in the bedroom where they sleep. The best way to relieve this situation is to ventilate the child’s bedroom to a certain extent. 3, allergies caused by coughing Some children will also cough more than once at night because of allergies. This is the time to check to see if there is pollen or some other allergens in the bedroom. 4. Cough caused by air conditioning If there is not enough humidity in the room, it can also make your child’s throat dry and itchy, and coughing can occur, especially in children who sleep in air-conditioned rooms, which is more common. If a child keeps coughing at night, it is important to find the right cause of the child’s cough. Only when the right cause is found can the right treatment and solution be found.