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ST-2 Four Whites
四白 〔四白〕sì bái
Alternate names: 谷门 gǔ mén, Grain Gate
Channel: ST, Foot Yáng Brightness (yáng míng) Stomach Channel
Modern location: An acupoint located on the face, straight below ST-1, over the small depression formed by the infraorbital foramen.
Classic location: Three fēn below Tear Container (ST-1), in the hollow of the cheekbone, level with the pupil. (Yī Zōng Jīn Jiàn)
Local anatomy: The branches of the facial artery and vein, the infraorbital artery and vein. The branches of the facial nerve (the point lies exactly on the course of the infraorbital nerve).
Action: Courses wind and quickens the network vessels; soothes the sinews and relieves pain.
Modern indications:
Classic indications: Headache; dizziness;
Needle stimulus: Needling: 0.2‒0.3 cùn perpendicular insertion.
Needle sensation: Localized twinge and distension that sometimes radiates upward.
Warning: Deep insertion contraindicated. Moxa contraindicated.
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