The baby’s runny nose is considered to be related to the cold caused by the cold. First, you can try to use a hot towel to put on both sides of the baby’s nose to relieve the role of capillary constriction; second, you can take hot steam to smoke the nostrils, which can make the nasal discharge quickly; third, you can take a nasal aspirator to suck the nose, which also has a certain auxiliary effect. If necessary, oral medication, such as cetirizine, pediatric aminophenol xanthamine granules, etc., can be used to relieve nasal congestion and runny nose, while paying attention to keeping warm, avoiding cold, and not going to places where people gather to avoid cross-infection.