There are two general causes of calf cramps at night: 1. they are caused by cold legs; 2. they are caused by calcium deficiency in the body. If it is caused by cold legs, you can add clothes to your calves, pay attention to warmth, and give massage, physical therapy, hot compress, acupuncture, etc. to your calves. If it is caused by low calcium, you can go to the local hospital for blood calcium test, and you can give appropriate calcium gluconate and vitamin D3 to supplement calcium. In addition to the calf pain that occurs after cramping, if it is more intense, oral meloxicam or ibuprofen can be taken to relieve it. Usually such symptoms can be adequately relieved in about a month and no sequelae will be left after treatment.