The general cure of runny nose for babies in a few days depends on the specific cause of the disease, the severity of the disease and the individual’s constitution, and cannot be generalized. If the runny nose is caused by common viral cold, it is usually a self-limiting disease, and if the child has a good constitution in the past, it can generally heal itself in about 7 days without special treatment. If the baby continues to run a lot of clear nasal discharge, it is considered to be caused by allergic rhinitis, which usually cannot be cured by itself and needs to be treated with anti-allergic drugs. If your baby has a yellow and sticky runny nose, it is considered to be a bacterial infection and can be treated with antibiotics as prescribed by your doctor in time. If your baby has runny nose, parents are advised to observe it closely. If the symptoms persist, you can go to the pediatric internal medicine department of a regular hospital in time to improve the relevant examinations and provide targeted treatment after a clear diagnosis.