The right leg cramp is most likely caused by calcium deficiency or the long time the leg is in a colder environment. If the cause is calcium deficiency, you can go to the local hospital to confirm the ion series of fasting calcium deficiency, you can properly supplement calcium ions, vitamin D3, you can also take oral shrimp tablets, shrimp powder or tofu and other foods to supplement calcium, pay attention to more sunshine to promote the deposition of calcium ions on the bones. If the cramps are caused by cold legs, you need to increase the clothing appropriately, give massage, physical therapy and moxibustion to the legs. If the pain in the cramped leg is more severe, you can take oral meloxicam or ibuprofen to relieve the pain.