0.5–1 cun transversely in an inferior or superior direction.
Naohu DU-17 is mostly used to expel Interior Wind, especially when the symptoms are related to the Brain, such as epilepsy or lockjaw. The patients also suffer from feeling of heaviness in the head, dizziness and vertigo.
It is effective in treating eye related manifestations such as blurred vision, myopia, eye pain and excessive lacrimation.
Finally, it calms the Mind and opens the Mind's orifices so as to treat symptoms such as manic behavior.