Leg pain caused by air-conditioning may be caused by physiological factors or by certain diseases, such as arthritis and fasciitis. Different causes, different treatment methods, including general treatment, physical therapy and so on. 1. Physiological factors: air-conditioning cold air blowing directly on the legs for a long time, making the blood circulation is not good, the phenomenon of soreness occurs. You can use hot water to soak your feet at night while you sleep, or use physical methods such as thumb pressure locally, so that blood circulation is gradually restored, which is helpful to help relieve the pain. 2. Leg arthritis: synovial membrane and blood vessels inside the arthritis patients are very sensitive to temperature changes, coupled with a large number of nerves around the synovial membrane distribution. As soon as the temperature drops, the blood vessels inside the synovium will contract and stimulate the surrounding nerves, resulting in significant pain. You should stop blowing the air conditioner, strengthen the leg warmth, appropriate hot compresses, and seek medical attention in case of seriousness. 3. leg fasciitis: leg fasciitis cold will also appear pain, pay attention to more rest, avoid excessive weight on the legs. Air conditioning blowing leg pain may also be caused by leg phlebitis, muscle ligament injury and other factors. After excluding physiological factors, you should go to the hospital in time and follow the doctor’s instructions for standardized treatment.