Long-term air-conditioning harm to the body, including upper respiratory tract infections, facial neuritis, arthralgia, and so on, need to reduce the time of air-conditioning, timely medical attention. 1. long-term stay in the air-conditioned room, because the room humidity is very low, will make people’s eyes, nose, respiratory tract mucous membrane dry, easy to catch a cold leading to colds and other upper respiratory tract infections. 2. Long-term air-conditioning is easy to cause facial neuritis, if the face for a long time to the air conditioning, will be stimulated by the cold wind, resulting in facial neuritis, there will be crooked corners of the mouth appeared, this situation needs to be timely to the Department of Neurology to carry out a formal examination and treatment, so as not to delay the condition. 3. If the patient himself has rheumatism, long-term blowing air conditioning, the performance of arthralgia will be more serious, when the temperature drops to a very low muscle spasm, the whole body around the joints will have discomfort, resulting in arthralgia. If long-term blowing air conditioning, you need to pay attention to keep warm, reduce the time of blowing air conditioning, try not to blow directly against, if any of the above symptoms, you need to consult a doctor in a timely manner.