Sudden cramps in the feet should be pulled in the opposite direction of the cramp, such as cramps in the plantar position of the foot, you should hold the toe part of the hand, and then carry out the back extension of the ankle joint, which can immediately lift the cramp, to maintain about 3-5 minutes to avoid the repetition of the cramp. Be sure to keep warm and not to get cold, because after getting cold, blood circulation will slow down and soft tissues such as muscles, tendons and ligaments will become tense, which will easily lead to the triggering of cramps. In addition, it is necessary to apply warm water bags to increase blood circulation in this location, and hot water can also be used to prevent spasms after effectively improving circulation. You can take Eperisone hydrochloride tablets, a muscle relaxant, which can effectively relax the muscles and surrounding soft tissues and prevent spasms.