Turn on the air conditioning nose itchy sneezing is mostly due to allergic rhinitis, upper respiratory tract infections, etc., can be improved through general treatment, medication. 1. General treatment: you can clean the air conditioner, reduce allergens and dust in the air conditioner, don’t set the temperature of the air conditioner too low, and open the windows diligently to change the air, you can use a hot towel to apply a local hot compress to the nasal cavity, or use saline to rinse the nasal cavity, which is conducive to relieving the symptoms of itchy nose and sneezing. 2. medication: ① allergic rhinitis: you can take anti-allergic drugs for treatment, such as cetirizine, loratadine and so on. ② upper respiratory tract infections: mostly caused by viral infections, can be used to reduce nasal congestion medication for symptomatic treatment, such as the use of pseudoephedrine hydrochloride, hydroxymetazoline nasal drops. These drugs can appear dizziness, drowsiness, nasal irritation and other adverse reactions, and need to be used under the guidance of a doctor. It is recommended that patients without significant improvement in time to seek medical attention, improve the relevant examination, standardized treatment.