1, foot patch, as the name implies, has the best effect on the sole of the foot.

2. The plantar skin layer is thin, with many reflection areas, which is easy to be absorbed, and the fat layer in other positions is thick or not easy to stick, which reduces the effect.

3, the principle of foot patch is to stimulate the role of acupuncture points and reflex zones, not necessarily where there is a problem, it is recommended to use foot patch reasonably, not superstitious.