Cough, asthma, chest and rib pain, expectoration of purulent blood, etc.

On the chest, at the first intercostal space, 4 cun from the anterior midline. (This acupoint is bilateral, one on each side.)

Sit upright or lie supine. Starting from the nipple, follow the vertical line upwards and push through three intercostal spaces (i.e., the first intercostal space), and the spot where pressing feels sore and swollen is the acupoint.