A child’s dry nose can be caused by dry air, a fondness for picking the nose or viral infections, and the symptoms can be improved by increasing the humidity of the environment and medication. 1. Improve the environmental humidity: the air is dry in the fall and winter seasons, which can easily lead to children’s dry noses. You can place a humidifier indoors to improve the environmental humidity, and outdoors, pay attention to wearing a mask to protect the mouth and nose. 2. medication: if the child’s nose is dry due to viral infection, you can apply antiviral drugs orally, such as antiviral oral solution, Lianhua Qingdian granules, etc. You can also use physiological seawater nasal spray. You can also use physiological seawater nasal spray to relieve the symptoms. In daily life, give children more vegetables, fruits and other foods rich in water and vitamins, and avoid eating spicy and stimulating foods. At the same time, drink more water and correct the habit of picking the nose.