Zhi Zheng acupuncture point is very effective in treating flat warts. The point is a part of the hand sun small intestine meridian, can draw some blood and energy from the heart, impact the small intestine meridian, can enhance the function of the small intestine, phlegm and dampness can be dissolved away, will not produce superfluous organisms, so the point has a clear heat and dampness, soothe the tendons, promote metabolism, can treat flat warts. The most effective way is moxibustion.