Baby air-conditioning nasal congestion and low-temperature environmental stimulation, allergic rhinitis, viral colds and other related, feasible general treatment, medication and so on. 1. Low-temperature environmental stimulation: some babies may experience nasal congestion when blowing air-conditioning when stimulated by a low-temperature environment. Usually, after parents take their babies out of the cold environment, the nasal congestion can be relieved by themselves; if it cannot be relieved by themselves, they can be sprayed with sea-salt water in the nose to improve the symptoms, which can be relieved. 2. Allergic rhinitis: clearly suffering from allergic rhinitis baby also need to get out of the allergenic environment, parents can also use warm water to wash the baby’s face or follow the doctor’s advice with saline rinse baby nasal cavity, so as to relieve the nasal congestion phenomenon. For some allergic rhinitis babies, can also be prescribed with cetirizine, loratadine and other antihistamines. Some babies can also be treated with leukotriene receptor antagonists such as montelukast and zalukast. For moderate to severe allergic rhinitis baby, can follow the doctor’s instructions with budesonide, mometasone furoate and other nasal glucocorticoid treatment. 3. Viral colds: most babies can heal themselves without special treatment. However, for the phenomenon of nasal congestion, if necessary, can follow the doctor’s advice with saline rinse. If it is caused by influenza virus, we can consider applying antiviral drugs such as oseltamivir. Parents are advised to give air-conditioning nasal congestion baby medication under the guidance of a physician, not indiscriminate use of drugs. Pay attention to create a good living environment for the child, and increase or decrease the child’s clothing in a timely manner according to the temperature change.