Rhinitis in children is usually related to allergies, recurrent respiratory infections and deviated nasal septum. 1. Allergy: children are allergic, is a common factor in children’s rhinitis, contact with dust, pollen and other things that can easily cause allergies will trigger rhinitis. 2. Recurrent respiratory infections: frequent colds, recurrent respiratory infections, or colds with a prolonged course cause rhinitis. 3. Nasal septum deviation: poor development of the nasal structure, commonly found in nasal septum deviation, can cause repeated inflammation of the nasal mucosa, inducing rhinitis. There may be other causes of rhinitis in children, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then under the guidance of the doctor’s treatment.