S4 Dicang , E4

Location Lateral to the corner of the mouth , directly below Juhao ( S3 )

Indications Deviation of the mouth , salivation , twitching of eyelids .

Method Puncture subcutaneously - - 1 . 0 - - 1 . 5 inches with the tip of the needle directed towards Jiache ( S6 ) . Moxibustion is applicable .

Vasculature The facial artery and vein .

Innervation Superficially , the branches of the facial and infraorbital nerves ; deeper , the terminal branch of the buccal nerve .