Baby always runny nose can be seen in physiological phenomena, pathological conditions (such as rhinitis – sinusitis), there is no most effective method, according to the cause of the need to give treatment, such as sinusitis need to anti-infection, local nasal spray treatment. 1. Physiological phenomenon: for younger babies, the nasal mucosa is tender and easily affected by the external environment, such as low ambient temperature, the baby warmth is not appropriate, there can be “always runny nose” phenomenon, need to pay attention to warmth, strengthen care. 2.Pathology (1) rhinitis – sinusitis: mostly refers to the sinus mucosa and nasal mucosa inflammatory changes, can appear repeatedly runny, part of the runny pus, mostly accompanied by nasal congestion and other symptoms, the treatment needs to be appropriate use of antibacterial drugs (such as amoxicillin clavulanic acid) anti-infective treatment, the use of mometasone furoate local nasal spray, can be carried out under the guidance of the physician nasal rinse and other therapies, the need for a full course of treatment. (2) respiratory tract infections: such as repeated respiratory tract infections, babies can appear the above performance, need to pay attention to strengthen nutrition, enhance physical fitness, bacterial infections caused by the acute phase of the disease need to be active full course of antibacterial drugs (such as cefaclor) anti-infective and other treatments. In addition, there are other causes, such as allergy, which can lead to the occurrence of such symptoms. All of the above medications should be used under medical supervision, and it is recommended to consult a specialist to evaluate the cause of the symptoms and to make appropriate interventions. The above medications should be used under medical supervision.