Hanyan GB-4
Chinese: 颔厌
Pinyin: Hàn Yàn
Location
Within the hairline of the temporal region, midway of the upper half of the distance between Touwei ST-8 and Qubin GB-7.
How to locate
First, locate the two reference points: Touwei ST-8 and Qubin GB-7.
ST-8 is 4.5 cun lateral to the anterior midline and 0.5 cun within the anterior hairline, at the corner of the forehead. GB-7 is in the depression on the level of the apex of the ear (Jiaosun TB-20), within the circumauricular temporal hairline.
Then divide the slightly curved line between these two points into quarters and locate GB-4 at the junction of the upper quarter with the lower three quarters.
Generally, GB-4 is located at the anterior portion of the temporalis muscle, which can be felt when chewing.
Main actions
- Subdues Liver Yang Rising
- Expels Interior Wind
Needling
0.3–1.5 cun transversely, tangentially along the skull, in the direction of the occiput, back of the head or towards the disorder or pain.
Commentary for Hanyan GB-4
Hanyan GB-4 is often indicated for headaches caused by Liver Yang Rising. Typical manifestations are headache, dizziness and blurred vision.
Furthermore, Liver Yang may lead to Liver Wind agitating, characterized by convulsions, lockjaw, epilepsy as well as deviation of eye and mouth.