The common causes of baby’s nose at night are acute upper respiratory tract disease, allergic rhinitis, nasal foreign body, etc. The treatment includes general treatment, medication, surgery and so on. 1. Acute upper respiratory tract disease: after the baby is infected with germs, the nasal secretion increases, and nasal congestion, runny nose and other symptoms can occur, if it is a viral infection, generally can be self-cured, no special treatment. Nasal dyspnea can try to use hot compresses on the nose or physiological sea salt water nasal wash to relieve. If bacterial infection, need to give antibiotic anti-infection treatment, such as cefixime. 2. Allergic rhinitis: the baby contact allergens nasal mucosal congestion and edema, can appear at night nasal congestion discomfort, treatment includes away from allergens, oral anti-allergy drugs such as cetirizine, but also the use of physiological sea saline nasal secretion rinsing to ease the discomfort. 3. Nasal foreign body: when the baby’s nasal cavity has a foreign body, immediately brought to the hospital, can be in the nasal endoscopy with a foreign body forceps to remove the baby’s nasal cavity foreign body, if necessary, need to be surgically removed. The baby’s nose at night need to be clear after the cause of symptomatic treatment, such as not relieved, it is recommended to the hospital in time, the above drugs are recommended to take under the guidance of a doctor, not to use.