The cause of back pain after blowing air conditioner is accompanied by lumbar pathology after getting cold, such as lumbar disc herniation, lumbar muscle strain and so on leading to lumbar pain. It can be relieved by reducing the time of blowing air-conditioning, local hot compresses, non-steroidal anti-inflammatory drugs and other medications. 1. Cold: Cold air blowing directly on the lumbar region causes the muscles and fascia of the lumbar region to be stimulated and spasm. It is thus recommended to avoid blowing the air conditioner for a long time, do not blow directly, and do not set the temperature too low, increase the clothing in the waist, and reduce strenuous activities. 2. Lumbar muscle strain: lumbar muscle strain leads to lumbar pain, you can use hot towels or hot water bags for hot compresses. And with the massage of the waist, can quickly relieve the pain. 3. Lumbar disc herniation: patients with lumbar disc herniation are prone to aggravation of the original disease, causing lumbar pain, muscle stiffness and other symptoms. You can take oral non-steroidal anti-inflammatory drugs such as celecoxib under the guidance of a doctor to relieve symptoms. Blowing the air conditioning caused by back pain, may also be related to the low back myofasciitis, need to pay attention to, go to the hospital in a timely manner, under the guidance of the doctor standardized treatment.