Baby’s runny nose is usually caused by a cold, but it may also be due to other diseases such as rhinitis, odor stimulation, crying may also cause the baby’s runny nose, so parents should not worry too much when the baby has a runny nose, and can take care of it from the following aspects: a. More rest. Children in the growth and development stage, because of the pressure of study, sleep less, immunity is reduced, easy to catch a cold or rhinitis attack. Therefore, they need the right amount of sleep to restore the immunity of the organism, so they should give their children enough rest so as to relieve the symptoms of runny nose. Second, take medicine on time. Generally, runny nose and cold are closely related, so we can treat them by taking relevant medications. Besides, we can also drink more water to promote the body’s metabolism, so as to slow down the inflammation caused by cold. In addition, runny nose may also be caused by rhinitis, which is easily mistaken for a cold by everyone, and needs to be treated by a doctor after differential diagnosis. Third, when the nose is running, we try to wipe the child’s nose with a soft tissue or handkerchief, it is recommended not to use disinfectant wipes, which can easily cause local skin flora imbalance. If you let your child blow his nose, pinch one nostril with your finger, not both nostrils should be blocked, otherwise it will easily cause middle ear infection. The baby’s runny nose may also be related to the surrounding environment. If there is a pungent smell at home, it will also stimulate the baby’s nasal mucosa and cause a runny nose.