Blowing the air conditioning nosebleed, may be due to the indoor air is too dry, resulting in nasal mucosa capillary rupture, bleeding, should be under the guidance of a professional doctor rinsing the nasal cavity or the use of nasal drops, etc., to improve the symptoms of nosebleed. 1. Rinse the nasal cavity: if the air conditioning nosebleed, the nasal cavity is relatively dry, or even the presence of nasal crusts, you can use saline rinse nasal cavity under the guidance of a professional doctor, the nasal cavity rinsed clean at the same time, you can keep the nasal cavity moist, thereby reducing the edema of the nasal mucosa, to improve the symptoms of nasal bleeding. 2. Medication: If rinsing the nasal cavity has no effect, you can use compound menthol nasal drops under the guidance of a professional doctor to keep the nasal cavity moist and avoid nosebleeds. If the conservative treatment of drugs is ineffective, you can consider plugging to stop bleeding or electrocoagulation to stop bleeding. If you are blowing air conditioning nosebleeds, it is recommended that you use a humidifier in the room to regulate the humidity of the indoor air, to avoid excessive dryness in the nasal cavity caused by the possibility of nosebleeds.