Location: In the back of the hand,  between 1st and 2nd metacarpal midpoint of the first two metacarpal radial side.
The simple method to locate the  acupoints: stretch and open the thumb and the index finger of one hand, place the crease of thumb joint of the other hand on the edge of the web  between the thumb and the index finger, the point where the tip of the thumb touches is he gu LI4.

Indications: headache, red eyes and throat, epistaxis (nose bleeding), tooth pain, trismus (inability to normally open the mouth), the drooping of mouth and eyes, deafness, mumps, sore throat, fever with no sweat, sweating, abdominal pain, constipation, amenorrhea, prolonged labor .
 

Combination:

1. combination with tai yang point for headache;

2. combination with  the tai chong for  red eyes and throat; disease with ying xiang governance nose;

3. combination with small business to cure sore throat;

4. combination with san yin jiao for amenorrhea, prolonged labor;

5. combination with jia che for drooping eye

Needle method: straight in 0.5 to 1 cun.