Nasal congestion is one of the symptoms of various nasal diseases, and is also seen in physiological conditions, mostly due to the relative/absolute narrowing of the nasal passages caused by various reasons, which hinders breathing. The most important thing to relieve nasal congestion is to unblock the nasal passage and relieve the original cause of nasal congestion. 1, unblock the nasal tract: (1) topical unblock the nasal tract, deal with nasal mucosa edema drugs. You can choose saline, glucocorticoid drugs. The most common are saline seawater nasal spray rinse nasal cavity, 1-2 sprays at a time, 3 times a day. (2) Clean up nasal secretions, you can use wet cotton swabs or nasal aspirator. (3) Hot compresses, hot towels can be applied to the nasal cavity, nose, fontanel and other parts of the nose, can relieve nasal congestion. (4) External ventilation nasal patch, or massage Yingxiang point, can also be effective. 2, deal with the original disease: (1) the baby has an upper respiratory tract infection: can take oral cold medicine, such as anti-sensory pellets. (2) rhinitis: oral antihistamines, such as loratadine, cetirizine, etc. (3) Physiological nasal congestion: mostly seen in 3-month-old babies with soft nasal mucosa, few nasal hairs, rich lymphatic tissue and relatively narrow nasal cavity, no special treatment is needed. (4) nasal occupancy: such as nasal polyps, surgical treatment can be chosen. (Specific medication, subject to the doctor’s face-to-face opinion) The baby’s nose is not breathable, hindering breathing, affecting the baby’s emotional response, feeding, sleep and other situations, you need to find the cause, timely hospital consultation, to clarify the cause and give some targeted treatment.