Location:
The acupoint is located on the dorsum of the hand, between the first and second metacarpal bones, approximately in the middle of the second metacarpal bone on the radial side (see Fig. 20). When the transverse crease of the interphalangeal joint of the thumb is placed in coincident position with the margin of the web between the thumb and the index finger of the other hand, the acupoint is where the tip of the thumb touches (see Fig. 21).

When the thumb and index finger join together, the prominence of the muscle is the location of the acupoint. When the thumb and the index finger open, the middle point on the line from the web between the thumb and index finger to the line connecting the first and second metacarpal bones is the location of the acupoint.

Indications:
Frozen shoulder, redness, swelling and pain of eyes, facial paralysis, epistaxis, toothache, swelling pain of the throat, abdominal pain, diarrhea, constipation, dysentery, common cold, cough, no sweating, profuse sweating, delayed labour, irregular menstruation, obstruction syndrome in apoplexy, infantile convulsion, paralysis and spasm of fingers.