《黄帝内经·素问·气穴论》
若是邪在皮毛孙络的小痹，则邪气随脉往来无定，用微针即可治疗，方法与刺孙络是一样的。
其小痹淫溢，循脉往来，微针所及，与法相同。
If the evil is in the small numbness of the skin, fur, and Sun net, the evil Qi will come and go irregularly following the pulse. It can be treated with micro-needles, and the method is the same as that of puncturing the Sun net.