Headache, stiff neck, dizziness, swelling of the jaw, mania, diabetes, elbow spasms, finger pain, etc.

On the dorsal ulnar side of the forearm, along the line connecting Yang Valley (SI-5) and Small Sea (SI-8), 5 cun above the wrist crease. (This acupoint is paired, one on each side)

Bend the elbow and face the palm downwards. First, identify the positions of Yang Valley (SI-5) (refer to "Yang Valley") and Small Sea (SI-8) (refer to "Small Sea"). Take the midpoint of the line connecting Yang Valley (SI-5) and Small Sea (SI-8) and then measure one transverse finger width downward, which is the location of this acupoint.