cuping is a chinese medicine that they put cups on your back for example and they suck the air out. the old fashion way of doing this was they would lit a candle inside a glass, the heat from the glass would suck the air out of your body. sometimes my mother used to tell me to not go outside without a shirt because i would catch a bad air. sometimes when we catch bad iars, you can remove them with a process called cupping.

cupping