Directly under the posterior aspect of the mastoid process, level with the angle of mandible, at the posterior border of sternocleidomastoideus.
- ①Headache, dizziness, blurred vision, stiffness of the neck, sudden deafness, pain and swelling of the throat, epistaxis, and other diseases of the head, neck, or the five sense organs;
- ③pain in the shoulder and back.
Puncture perpendicularly 0.3-0.5 inch. Moxibustion is applicable.