On the midline of the upper back, in the depression below the spinous process of the 3rd thoracic vertebra(T3) .
- ①Fever, headache, cough, dyspnea;
- ②convulsions and syncope, epilepsy, insanity;
- ③pain and stiffness in the lumbar area;
- ④fascitis of the muscles in the neck and back.
Perpendicular insertion 0.5-1 cun upward.