Pinyin: Jiā Chéng Jiāng
1 cun lateral to the center of the mentolabial groove.
First locate Chengjiang REN-24 in the center of the mentolabial groove.
Jiachengjiang EX-HN is 1 cun lateral to REN-24.
0.3–0.5 cun vertically or up to 1 cun obliquely towards the mental foramen.
Jiachengjiang EX-HN is mostly used to expel Interior Wind from the face, so as to treat facial paralysis and trigeminal neuralgia.