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【Location】On the face，at the junction of the upper 1/3 and middle 1/3 of the philtrum.
【Manipulation Method】Puncture obliquely upward 0.3-0.5 cun，or pinch with fingernail.
【Indications】Coma，loss of consciousness，wind stroke，epilepsy，convulsions，toothache，deviated mouth，lockjaw，nasal obstruction，epistaxis，sprain lumbago.
【Stratified anatomy】（Fig.I-13）
（1）Skin The skin is distributed by infraorbital n..
（2）Subcutaneous tissue There are branches of infraorbital n.，superior labial a. ＆ v..
Fig.1-13 Median sagittal section of Shuigo（u GV 26），Duidua（n GV 27），Chengjiang（ CV 24）and Lianqua（n CV 23）
（3）Orbicularis oris The orbicularis oris is located in the lip around the oral fissure.