The efficacy of foot patch is mainly in two aspects, as follows: First, to carry out foot patch treatment at the Yongquan point of the plantar area, usually selected drugs to nourish Yin and diarrhea fire, such as Huanglian, Scutellaria, Huangbai, Dioscorea, Shengdi, Angelica, Chuanxiong, Bai Shao and other drugs, can effectively play the role of nourishing Yin and lowering fire. It mainly treats symptoms of yin deficiency and fire in human body, such as dry eyes, astringent eyes, red eyes, dry mouth, weakness, sweating and other symptoms. Secondly, the use of blood circulation and blood stasis, soothe the tendons and channels, warming the meridians and dispersing cold drugs for foot pain location, such as the manufacture of Chuan Wu, the manufacture of Cao Wu, stretching the tendons grass, through the bone grass, safflower, mugwort, ginger, frankincense, myrrh and other drugs, can effectively reduce the plantar muscles and the surrounding soft tissue strain, strain and other pain symptoms.