Vertically 0.1–0.2 cun or prick to bleed.
Caution: Painful point.
In chronic situation, the Interior Heat gives rise to mental disorders such as anxiety, agitation, palpitation and insomnia. Thus it calms the Mind.
Together with other Well points of the hand, Zhongchong P-9 is also used to expel Interior Wind and regain consciousness, especially for patients under acute Wind-stroke attack.