When the leg gets cold, it tends to make the local blood circulation worse and is prone to stagnation of Qi and blood stasis, so it can cause the patient’s leg joints to become sore or swollen, and also soreness and pain, which can be significantly worse when the patient moves around or gets cold. If the cold lasts for a long time, the pain may persist and may also cause discomfort such as stiffness in the leg muscles. The easiest and most convenient way to relieve the pain after a cold leg is to use a warm water bag or hot towel to apply heat to the leg, which helps to promote blood circulation and can improve the discomfort. If necessary, you can also choose cupping, which can effectively get rid of the cold in the legs.