0.5–1 cun obliquely or transversely in a posterior direction towards taiyang Ex-HN-5.
In China, this point is also needled along the eyebrow to Yuyao Ex-HN-4 in the centre of the eyebrow.
Sizhukong TB-23 is mainly used as a local point for eye disorder and headache around the eyebrow outer corner, particularly these issues are caused by Liver Wind agitating Internally due to Liver Yang Rising. Typical manifestations are headache, dizziness, blurred vision, red eyes or twitching of eyelids.
It can also be indicated for ear disorders, when combine with Tinggong SI-19.