Calf cramps, mainly due to the corresponding local muscle dysfunction, leading to intense spasm, contraction, resulting in corresponding cramp symptoms. The next day there is also pain, mainly due to the spasm contraction is relatively strong, will cause muscle fiber damage, thus producing persistent pain. The following measures can be taken to alleviate, first of all, the lower limbs can be braked to rest, do not continue to long standing, long walk or strenuous exercise. Secondly, pay attention to the lower limbs to keep warm, do not get cold. Supportive symptomatic treatment can be taken, for the localization of pain can be used externally, including Futalin emulsion, Yunnan Baiyao aerosol and so on, choose a kind of topical application can be. You can also carry out corresponding local physical therapy such as hot compress, baking electricity, spectrum irradiation, etc., to promote local blood circulation, which is conducive to the recovery of damaged tissues. If the symptoms are not relieved within 3-5 days after the above treatment, you must go to the hospital for consultation.