The little baby’s nose is not ventilated nasal congestion, may be related to physiological factors, but also may be related to respiratory tract infections, allergic rhinitis and other factors, the treatment is mainly based on physical therapy and drug therapy. 1. Physiological factors: small children due to the narrow nasal cavity, the development of the nasal tract is not yet perfect, easy to cause nasal congestion performance, if there is no other aspects of discomfort, parents can be given to the sea saline nasal spray, improve the symptoms. 2. Respiratory tract infections: respiratory tract infections may appear the above symptoms, but also accompanied by cough, fever and other conditions, you can first use saline rinse nasal cavity, dilute nasal secretions, if necessary, timely medical treatment, as prescribed by the negative pressure to the nose suction replacement treatment. In addition, it is also necessary to actively treat the primary disease. If you consider bacterial infection, if necessary, can give antibiotics such as cefixime anti-infection. 3. Allergic rhinitis: if the baby is allergic rhinitis, in addition to sea saline, nasal negative pressure replacement, you can also follow the doctor’s instructions to use cetirizine hydrochloride drops and other drugs. All of the above medications are recommended to be taken under the guidance of a doctor, and should not be used on their own. In addition to the little baby’s nose may also have other pathological factors, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.