Paranasal sinusitis in children can mostly be relieved through active treatment and is not serious. However, if left untreated, it may affect the development of the child’s nose and is more serious. Children’s paranasal sinusitis is a common disease, the acute stage will appear fever manifestation, usually with pus nasal discharge, loss of sense of smell, nasal discharge with blood and other symptoms. If left untreated, paranasal sinusitis may affect the development of a child’s nose. Children with paranasal sinusitis should go to the hospital in time, and use drugs such as budesonide nasal spray and hydroxymetazoline hydrochloride under the guidance of a doctor to relieve symptoms such as nasal congestion and runny nose, improper use of drugs may cause itching, rash, irritation and other adverse reactions, and is contraindicated for those who are allergic to drugs. It is recommended to go to the hospital in time for consultation, always observe the physical condition, under the guidance of the doctor to use the correct medication, and pay attention to the diet, avoid spicy stimulation of cold food, and so on.