Cramp is also known as muscle spasms, playing football leg often cramps and sports before not warming up, too much exercise, calcium deficiency and so on. After the cramp you can straighten your legs, grab your toes with your hands, pull the leg muscles to relieve; you can also use some drugs to relieve, such as Yunnan Baiyao spray, musk blood stasis cream; usually do a good job of warming up before exercise, appropriate calcium supplements, such as calcium gluconate. After the occurrence of leg cramps can sit on the ground, straighten the lower limbs, pull the cramped legs or toes with your hands, and do the dorsal stretching action, which can reduce muscle contraction and spasm, and quickly relieve cramps. Some topical anesthesia or medications that invigorate blood circulation and remove blood stasis, such as Lidocaine Chlorhexidine Aerosol, Nanbaiyao Spray, and Musk Blood Stasis Relieving Cream can also relieve pain and other discomforts caused by cramps. If you check your body for calcium deficiency, it is recommended that you usually take appropriate calcium supplements, such as calcium carbonate, calcium lactate, calcium gluconate, and the cramps will get better. In addition, usually before playing ball should also do a good job of adequate warm-up activities. Playing football leg often cramps may also be other reasons, a long time does not alleviate the suggestion of timely medical treatment, for the cause of targeted treatment. The above drugs need to follow the doctor’s advice.