Du27 Duiduan ( Vg27 )

Location On the median tubercle of the upper lip , at the junction of the skin and upper lip

Indications Mental disorders , lip twitching , lip stillness , pain and swelling of the gums .

Method Puncture obliquely upward - 0 . 2 - 0 . 3 inch .

Vasculature The superior labial artery and vein .

Innervation The buccal branch of the facial nerve , and the branch of the infraorbital nerve .