The most common cause of neck pain from air conditioning is poor blood circulation in the local subcutaneous tissues or muscles after being cooled, local muscle spasm, or even sterile inflammation of the muscles. This condition can be treated as follows: 1. Oral non-steroidal anti-inflammatory drugs can be taken to eliminate local sterile inflammation and also to relieve the symptoms of pain. Commonly used are ibuprofen, acetaminophen, nimesulide, celecoxib and other drugs. The side effects of celecoxib on the gastrointestinal tract are relatively small, so if you have stomach problems, you can use celecoxib. 2, you can give local topical ointment to reduce swelling and pain, dispel wind and remove dampness. The common ones are indomethacin baboo cream, pain relief cream or compound Nanxing pain relief cream, etc. 3, you can do some physical therapy, such as infrared therapy, microwave therapy or medium frequency pulsed electric therapy, which can promote local blood circulation and relieve local muscle spasm, thus also can relieve local inflammatory pain.