On the back, 3.0 cun lateral to the lower border of the spinous process of the 3rd thoracic vertebra.
Pulmonary tuberculosis, hemoptysis, cough, asthma, neck rigidity, pain in the shoulder and back.
Descends rebellious Lung Qi, relieves cough, activates the meridian, alleviates pain.
UB 42 is the outer Back-Shu of the Lung. Its special feature is that it helps treat the psychological/spiritual aspect of the Lung. So, it is generally used to treat prolonged sadness and grief.
Oblique insertion .5 - .8 cun.