Local cold may cause symptoms: 1, pain, because after the cold will cause local muscle contraction, blood circulation slows down, so can not metabolize the local inflammatory factors, when the inflammatory factors can not be metabolized, accumulated in the local will cause pain. 2, local numbness and discomfort, but this numbness is only local or fascial contraction may stimulate the local nerve, causing compression of the nerve. In traditional Chinese medicine is called qi stagnation and blood stasis. 2, local numbness discomfort, but this numbness is only in the local, will not appear elsewhere, because the local or fascial contraction may stimulate the local nerves, the nerves caused by the card pressure, which leads to numbness symptoms. 3, stiffness, which is the joints due to the cold, because of the muscles around the joints of the local cold affects the flexibility of the muscles and the strength of the muscle strength is affected by the influence of the local joints, the muscles will affect the strength of the joints, the muscles will affect the local joints. The muscle strength will be affected, which will affect the function of the local joints. Cold thighs will cause knee or hip joint activities are not favorable, but the cold time is short after moxibustion hot compresses or poultices will soon be relieved, if the long time does not relieve the need to go to the hospital for examination, because the serious frostbite may be more than their own self-healing range, which requires the intervention of a doctor.