Children’s runny nose may be related to common cold, acute rhinitis, allergic rhinitis, etc., and can be treated with cold medicines, vasoconstrictor nose drops, glucocorticoid spray and other medicines as prescribed by the doctor. 1. Common cold: when children’s runny nose is caused by cold, can take pediatric aminophenol xuanamin granules and other drugs to treat cold, so as to relieve the symptoms of runny nose. 2. Acute rhinitis: an acute inflammation of the mucous membrane of the nasal cavity triggered by a viral infection, mainly manifested by runny nose and nasal congestion. Acute rhinitis can be caused by the use of ephedrine nasal drops and other vasoconstrictor nasal drops to reduce nasal mucosal edema, to achieve the effect of nasal ventilation and drainage, to alleviate the symptoms of children with runny nose. 3. Allergic rhinitis: also known as allergic rhinitis, refers to the children in contact with allergens, the emergence of watery nasal discharge, nasal itching, nasal congestion and other main symptoms of the chronic inflammatory disease of the nasal mucosa. It can be treated with glucocorticosteroids such as budesonide inhalation aerosol to relieve symptoms. When a child has a clear runny nose, he or she should seek medical advice from a medical professional for a clear diagnosis and treatment. If medication is needed, please take it under doctor’s supervision.