Babies may have a clear nose for their own reasons or for external reasons, and parents will think that their children have a cold at this time, but in fact there are also the following reasons for babies to have a clear nose. Normal reaction: If baby cries because of emotion, environment and other factors, it will also appear the phenomenon of clear watery nose in a short time, in fact, this situation is the normal reaction, there is no need to use drugs to treat, in most cases wait until the emotion gets better. Respiratory tract infection: Generally, clear runny nose may appear after getting cold, and some babies may also have fever, bad spirit, cough and other symptoms. Allergic rhinitis: If your baby has a clear nose along with regular sneezing, itchy nose and blocked nose, you should suspect whether your child is suffering from allergic rhinitis, and you can go to the ear, nose and throat department. Sinusitis: If your baby initially has a clear runny nose, but then it becomes sticky and lasts for more than 10 days, you should be cautious if it is caused by sinusitis. There are many reasons why babies have a runny nose, so it is important to analyze the situation on a case-by-case basis, especially if it is not relieved for a long time, you must consult a doctor in time.