A baby’s runny nose needs to be treated according to the specific disease factor. If it is caused by a cold, the pathogen needs to be differentiated for treatment. If it is caused by allergic rhinitis, you can give anti-allergy drug treatment, such as cetirizine. 1. cold caused by the baby runny nose is generally caused by viral infections, often accompanied by a slight cough, sneezing and other symptoms, there is no specific clinical drugs, you can be appropriate rest, supplementation of sufficient nutrients, to maintain the balance of water, salt and electrolytes, to keep the airway open, and prevention of complications and other treatments. If the combination of bacterial infection can be added with antibiotics such as cefazoxime and other antibiotic treatment as prescribed by the doctor. 2. allergic rhinitis caused by the baby runny nose, the first need to get rid of allergens, and second, can be under the guidance of the doctor oral anti-allergy drugs such as loratadine, cetirizine and other drugs. Baby runny nose need to go to the hospital for laboratory tests and examinations to identify the cause of runny nose, and then according to the cause of treatment.