Chest and rib pain, wheezing, vomiting, acid regurgitation, swelling in the armpit, and shoulder and arm pain.

On the lateral side of the chest, 1 cun in front of Armpit Abyss (GB-22), level with the nipple, in the 4th intercostal space. (This acupoint is bilateral, one on each side.)

Step 1: Sit up straight and raise your arm.
Step 2: Measure 1 horizontal finger width forward and downward from the Armpit Abyss (GB-22) acupoint, to the level of the nipple, and this is the location of this acupoint.