crossing point: meeting of foot yangming and conception vessel (CV).

[Origin]

Bear, endure; slurry, water slurry. The entrance of water slurry is supported by the lower lip, and the hole is in the depression of the lower lip. Release the name and release the form: "The mouth says Chengjiang (CV24), which is the water-bearing slurry."

[Location]

Chengjiang (CV24) acupoint
(quoted from "Meridians and Acupoints")

• Zhenjiu Jiayi Jing: "In front of the Yi, under the lip."
• Zhenjiu Dacheng: "The lip edge is sunken";
• Donggong Anmo Mijue: "Five points below the lips, right in the middle."

[Anatomy]

• Muscles: between the orbicularis oris and mentalis muscles.
• Nerve: Facial nerve and mental nerve branches.
• Vessels: branches of the inferior labial artery and vein.

[Manipulation]

Perpendicular insertion 0.3~0.5 inches, or transverse insertion 0.3~1 inches to both sides. Generally no moxibustion is used.

[Efficacy]

dispersing wind, sharp tongue.

• Classical: crooked mouth, tight lips, toothache, aphtha, floating face, strong pain in the head and neck, epilepsy, bleeding, blurry eyes, consumptive thirst, red and yellow urine, incontinence of urine.
• Modern: deviation of mouth, oral ulcer, salivation.

[Recipe]

• Bleeding from epistaxis: Chengjiang (CV24), Weizhong (BL40).
• Dazzled: Chengjiang (CV24), Qianding (GV21), Tianzhu (BL10), Naokong (GB19), Muchuang (GB16).
• headacheXiang Qiang, toothache: Chengjiang (CV24), Fengfu (GV16).
• Sores in the mouth: Chengjiang (CV24), Laogong (PC8).