Strictly needle 0.5–1 cun in an anterior direction. It is because Yifeng TB-17 is close to the facial nerve. It is recommended to needle with mouth slightly open.
Yifeng TB-17 is widely used for various ear problems, no matter if they are of Exterior or Interior origin. For example, Exterior Pernicious Evils such as Wind invasion can cause ear infection. Interior disharmony such as Liver Yang Rising, Liver Fire or Kidney Deficiency may lead to deafness or tinnitus.
It also treat other Wind related disorders such as trigeminal neuralgia or facial paralysis. Some doctors claim that deep needling of at least 1 cun of this point can give a good effect on facial paralysis. Tenderness should always be checked on mastoid area before needling.