Cough, asthma, excessive phlegm, chest and rib pain, vomiting, mastitis, intercostal neuralgia, etc.

In the chest area, at the 3rd intercostal space, 2 cun lateral to the anterior midline. (This acupoint is a pair, one on each side)

Supine position. Push vertically upward from the nipple to the 1st intercostal space (which is the 3rd intercostal space), within this intercostal space, measure 2 transverse fingers (thumb) laterally from the anterior midline, and the spot where there is a sour and swollen sensation upon pressure is the acupoint.