When a cramp occurs, that is, in the direction of the force opposite to the toes and adhere to the l ~ 2 minutes or more, can be effective. Specifically, if the muscle cramp behind the calf, on the one hand, you can pull the foot to make the foot plate up, on the one hand, try to straighten the knee joint; when the muscle cramp in front of the calf, you can press the foot plate and wrench flexion of the toes.
The easiest thing to do is to relax when you have a cramp and then slowly straighten your foot
This is the first time you have ever had a cramp in your foot.