Midway between Dazhui (Du 14) and the acromion, at the highest point of the shoulder.
Pain in shoulder and back, rigidity and stiffness of the neck, motor impairment of upper extremities, mastitis, hyperthyroidism, functional uterine bleeding. Pain and rigidity of the neck, pain in the shoulder and back, motor impairment of the arm, insufficient lactation, mastitis, scrofula, apoplexy, and difficult labor.
Relaxes sinews promote lactation, promotes delivery.
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Perpendicularly 0.5-1.0 inch