The child’s constant runny nose may be related to allergic rhinitis, but also may be related to upper respiratory tract infections, treatment in addition to avoiding allergens, but also need to cooperate with medication. 1. Allergic rhinitis: children always runny nose may be related to allergic rhinitis, accompanied by sneezing, nasal congestion and other conditions, parents are advised to take their children to the hospital for allergen examination, life try to avoid, can be prescribed to be mometasone furoate nasal spray and other local anti-inflammatory nasal spray, loratadine anti-allergy treatment, the later will slowly improve. 2. Upper respiratory tract infection: children always appear above, may be related to the upper respiratory tract, can improve the blood test to assist in the diagnosis, such as the consideration of bacterial infections can be prescribed to amoxicillin anti-infective treatment, such as the consideration of viral infections can be prescribed to the buspirone anti-inflammatory oral solution, phlegm suction care, sea saline nasal spray and other symptomatic supportive treatment. Children always runny nose may also have other reasons, it is recommended to go to the hospital in a timely manner to carry out relevant examinations, clear cause of the disease and then actively treat the symptoms, the above medications are recommended to take under the guidance of a doctor, not to be used on their own, in order to avoid the risk of danger.