A dry cough is a special type of cough in which the child coughs without phlegm and with a crisp sound, and it is important to first determine what is causing the dry cough and then treat it symptomatically. The main clinical causes of dry cough are environmental irritation, allergies, and poor lifestyle habits. First, some environmental irritants can cause dry cough in children, such as dry cough caused by hair entering the throat when children come in contact with animals, or dry cough caused by willow flakes floating in the air entering the trachea when playing in the field. Secondly, some allergic diseases can cause a cough that is clinically diagnosed as allergic cough, which is a cough associated with exposure to allergens. The cough usually occurs at night or in the early morning, is aggravated by exercise and has no other accompanying symptoms, and is often triggered by pollen or mites, as well as feathers and food. This type of allergy-induced cough can be further tested for allergens at the hospital and will be relieved by taking anti-allergy medication away from the allergen. Finally, bad habits can also cause coughs, such as coughs caused by children who don’t like to drink water and dryness in the living room, so you can put a humidifier in the house, wear a mask when you go out, and boil some pear juice for your child to drink when conditions allow. In addition to the above-mentioned causes, you should also observe whether your child has any accompanying symptoms. If there are no other accompanying symptoms and your child has a serious cough, it is recommended that you go to the hospital for further consultation to identify the cause and treat the problem.