9 months baby nasal congestion, runny nose considerations and upper respiratory tract infection, allergic rhinitis, nasal foreign body, adenoid hypertrophy and other reasons related to the cause of the need for targeted treatment, including general treatment, drug treatment and so on. 1. Upper respiratory tract infection: 9-month-old babies by bacterial infection, can be applied to sensitive antibiotics for treatment, such as cefixime, etc., viral infection is generally supportive treatment. In addition, the nasal cavity can be rinsed with saline as prescribed by the doctor to relieve the symptoms of nasal congestion and runny nose. 2. Allergic rhinitis: children should avoid contact with allergens, if the symptoms are not relieved for a long time or even aggravate the need to consult a doctor for treatment in time, baby anti-allergy drugs should be used carefully as prescribed by the doctor. 3. Nasal foreign body: usually nasal foreign body does not need special medication, but need to consult a doctor in time to take out the foreign body in the nasal cavity, in order to keep the respiratory tract open. 4. Adenoid hypertrophy: Saline can be used to rinse the nasal cavity when there is nasal congestion and runny nose, and those with infection can be treated with anti-infective drugs such as cefuroxime and penicillin. For serious conditions, feasible adenoidectomy, plasma radiofrequency ablation and other surgical treatment. When the nine-month-old baby nasal congestion, runny nose, parents should take their medical examination, in order to clarify the cause of the disease after treatment as prescribed by the doctor, not to use drugs. Parents should also clean up the nasal secretions of the baby in time to ensure the baby’s smooth breathing. All of the above drugs should be used under the guidance of a doctor.