Newborns runny nose is often caused by upper respiratory tract infection, allergic rhinitis and other causes, need to be targeted treatment, such as the use of antibiotics, avoid contact with allergens and other ways of treatment. 1. Upper respiratory tract infection: newborns with runny noses may be due to bacterial or viral infections caused by upper respiratory tract infections, bacterial infections can be treated with sensitive antibiotics, such as cefixime, anti-infective treatment; if the viral infections are caused by the general supportive treatment can be. 2. Allergic rhinitis: the newborn’s runny nose can also be caused by allergic rhinitis, this case of runny nose for a long time, there are no other special symptoms, you can saline rinse nasal cavity, but also must be away from allergens. In addition, there are other causes can lead to newborns runny nose symptoms, such as a long time does not relieve the recommended timely diagnosis, follow the doctor’s instructions for targeted treatment, so as not to miss the opportunity for treatment. All of the above medications should be used under the guidance of a doctor.