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Approximately 0.5 cun superior and medial to Yingxiang (LI 20), this point is at the upper end of the nasolabial groove.
Needle obliquely upward and subcutaneously at 0.3-0.5 cun. Moxa for 5-10 minutes.
This point is also known as Bitong 鼻通、Bichuan 鼻穿、Chuanbi 穿鼻.