Turn on the air conditioning nose may be physiological reasons, cold air stimulation of the nasal mucosa caused by the symptoms can be relieved through life conditioning. It may also be a pathologic cause, and can be relieved by medication. 1. physiological reasons: if the air is too cold, dry, and at the same time the nasal mucous membrane in the nasal cavity is weak, inhalation of cold air, the nasal mucous membrane caused by the stimulation, it will cause tingling and other nasal discomfort. You can alleviate the symptoms through life management, pay attention to nasal protection, wear a mask when you go out in cold weather, and avoid long-term activities in the cold outdoors, which can help improve the symptoms of nasal discomfort. 2. Pathological reasons: air conditioning is not cleaned for a long time, will produce a large amount of dust, fungi and other inhalation allergens, induced allergic rhinitis, resulting in nasal discomfort. Can follow the doctor’s instructions oral loratadine and other anti-allergy drugs for treatment, to help relieve the symptoms. Open air conditioning if the nose is uncomfortable, long time does not relieve, it is recommended to consult a doctor in time, standardized treatment.