The child has been running nose may be related to colds, allergic rhinitis, etc., can first improve the nasopharyngoscopy and other tests to clarify the diagnosis, under the guidance of the doctor to be treated with medication, usually strengthen the child’s care. 1. Upper respiratory tract infection: a runny nose may be caused by bacterial infection or viruses caused by colds, the symptoms of snot, you can go to the hospital to check the blood routine, if you consider the possibility of bacterial infection can use cefixime particles anti-infective treatment, if it is a viral infection, you can comply with the doctor’s instructions to be the sea saline nasal spray, phlegm suction, and other symptomatic supportive treatment. 2. Allergic rhinitis: there may be a relationship with allergic rhinitis, may also be accompanied by nasal itching, nasal congestion, sneezing and other symptoms, you can follow the doctor’s instructions to the child to use anti-allergy drugs, such as loratadine tablets, need to pay attention to the side effects of the drug, such as lethargy, fatigue and other adverse reactions. Usually should avoid contact with allergens. If the child has been running nose, it is recommended to take the child to the hospital in time to improve the relevant examination, identify the cause of the treatment under the guidance of the doctor, and follow the doctor’s instructions to use medication.