Acupuncture Point Qianding (GV21)
Location:
Proper sitting with one's back propped; draw a line connecting the anterior and posterior hairline, a spot on this line, 1/4 apart from the anterior hairline, 0.5 cun posterior to this point.

Function:
Refreshing oneself, and tranquilizing the mind .

Regional Anatomy:
Skin-subcutaneous tissue-epicranial aponeurosis-subaponeurotic loose tissue.
There are the frontal nerve, the anastomotic network of the left and right superficial temporal arteries and veins with the left and right fronral arteries and veins in this area.

Indications:
Epilepsy, dizziness, blurring of vision, pain in vertex, and rhinorrhea.

Prescription:
Combined use with Yingxiang (LI 20) for treatment of rhinitis; with TaichongLR3 Taichong (LR 3) Shu-Stream, Yuan-Source Point) for treatment of pain in vertex, and with HoudingGV19 (Houding (GV19)) and HanyanGB4 (Hanyan (GB4)) for treatment of migraine.

Methods:
Insert the needle subcutaneously to 0.5-1 cun depth; needling response: local sensation of numbness and distention; moxibustion: using 3-5 moxa-cones, or mild moxibustion for 10 min.