Between the upper lip and the upper gum in the labial frenum.
Pain and swelling of the gum, hemoorhoids. Mental disorders, pain and swelling of the gums, rhinorrhea.
Diffuses the lung and frees the portals, clears heat and drains fire, brightens the eyes and relieves itching.
Obliquely upward, 0.1-0.2 inch, or prick with three edged needle and let out blood.