Leg pain caused by a cold is caused by two main reasons. First, after a cold or wind, it is easy to cause cool air to invade the muscles and joints of the legs, which causes muscle spasm and contraction, and contraction of the ligaments and joint capsule around the joints, thus causing pain in the legs. Second, after a cold, it is easy to have a fever, which will lead to increased blood circulation in the body, and will lead to edema in the synovial membrane inside the joint, which will lead to the symptoms of leg pain. So after the leg pain caused by a cold, you must rest in bed, pay attention to warmth, drink more water, and can take oral non-steroidal anti-inflammatory drugs, such as nimesulide, ibuprofen, clonoxicam and other drugs to relieve pain.