Pediatric runny nose is just a symptom, according to the cause of runny nose for the appropriate treatment, while giving life on the conditioning. (1) Infectious rhinitis: If infectious rhinitis causes runny nose, the nasal mucosa is congested and swollen at this time, mostly accompanied by intermittent nasal congestion; nasal discharge begins to be watery, and then gradually for pus, physiological seawater can be used to wash the nasal cavity, in order to remove nasal secretions, improve nasal ventilation, and antibiotics can be given to consider bacterial infection. (2) Allergic rhinitis: mostly in the morning, accompanied by nasal congestion, nasal itching, sneezing and other symptoms, at this time mostly caused by allergies, need to pay attention to the air at home, more ventilation to keep the air fresh, to avoid allergens such as pollen, dust, mites, air of the newly renovated rooms and other allergens stimulation, physiological seawater nasal rinse, oral antiallergic drugs, if necessary, can be given to the application of nasal spray hormone. (3) foreign body: if one side of the nasal cavity, pus flow, odor, with blood in the snot, need to pay attention to whether there is a foreign body in the nasal cavity. If the foreign body causes, need to go to the ear, nose and throat department to remove the foreign body. (4) The accompanying symptoms of upper respiratory tract infection: generally caused by viral infections, mainly to give symptomatic treatment. (1) Avoid stimulating, spicy and greasy food, and take light food. (2) Drink more boiled water to soften the nasal secretion and reduce the blockage of respiratory secretion. If there is too much runny nose, you can use hot water and steam to fumigate the nose. (3) Blow your nose correctly: block one side of your nostrils and blow your nose one by one. (4) Strengthen physical exercise, strengthen resistance, pay attention to the right degree of warmth and cold, and prevent colds. If your child’s runny nose doesn’t get better or gets worse, please consult a doctor.