Headaches, dizziness, vertigo, tightness of the lips, and toothache.

On the head, 2.5 cun above the anterior hairline, and 2.25 cun lateral to the midline of the head. (This acupoint is bilateral, one on each side.)

Step 1: Sit up straight or lie on your back.
Step 2: Measure upwards from Head Governor of Tears (GB-15) (refer to "Head Governor of Tears") for 2 horizontal fingers (the breadth of the thumb is considered 1 cun), and press where there is a sensation of soreness and swelling; this is the location of this acupoint.