The treatment of pain in the leg and knee area needs to be based on the specific causes: 1, often due to the presence of lesions in the knee joint area, such as osteoarthritis, patellar chondromalacia and surrounding soft tissues have significant degeneration, strains, cold and other conditions, these can be taken conservative treatment measures, oral anti-inflammatory and pain relief, blood circulation, improve circulation and other related drugs can effectively reduce inflammatory stimulation If the symptoms in the joint are obvious, you can inject compound betamethasone injection into the joint to suppress the inflammation in the joint, and then inject sodium glacial injection into the joint to lubricate the knee joint after the inflammation is controlled. 2. If the muscles of the leg and soft tissues such as tendons and ligaments are strained and damaged, you need to rest strictly in bed and elevate the leg above the level of the heart. 3, abnormalities in the deep blood vessels, such as thrombosis in the deep veins that affects the venous return, will cause significant pain and swelling, and generally require interventional placement of a venous filter, followed by surgical treatment with interventional thrombolysis or embolization.