Children’s noses are blocked at night and normal during the day, can be considered with allergic rhinitis or upper respiratory tract infections and other reasons, can be treated with local treatment or systemic treatment and other measures. 1. Allergic rhinitis: need to find out the allergens in the environment in time, avoid re-exposure; when there is nasal congestion, can be used locally decongestant nasal spray such as hydroxymetazoline and other nasal drops, but also under the guidance of the doctor, the local application of glucocorticosteroid sprays, such as budesonide nasal spray, if nasal secretion is too viscous, can be used to disinfect the physiological saline rinse nasal cavity. In addition, when the symptoms are more serious, you can follow the doctor’s instructions to use cetirizine and other antihistamines for anti-allergy treatment. 2. Upper respiratory tract infections: rest, ventilation and drinking water should be paid attention to. Viral infections generally supportive treatment, such as influenza virus caused by oral oseltamivir treatment; secondary infection of bacteria, can choose penicillin, cephalosporin and other drugs for anti-infection treatment. Children with blocked noses are advised to consult a doctor in a timely manner to identify the cause of the disease, and then standardize and rationalize the use of medication under the guidance of the doctor. All of the above drugs should be used under the guidance of a doctor.