Cupping… DON’T DO IT. Have a look at the ever-expanding information showing why.
The Ridiculous And Possibly Harmful Practice Of Cupping):
https://www.forbes.com/sites/stevensalzberg/2019/05/13/the-ridiculous-and-possibly-harmful-practice-of-cupping/?sh=730cf05a31f3
Cupping – Olympic Pseudoscience:
https://www.usatoday.com/story/news/2016/08/08/theres-no-evidence-show-cupping-works-why-so-popular/88432132/
Cupping: bruises for the gullible, and other myths in sport:
http://www.dcscience.net/2016/08/10/cupping-bruises-for-the-gullible-and-other-myths-in-sport/
Why Olympic athletes love cupping and other alternative therapies:
https://qz.com/2043108/why-olympic-athletes-love-cupping-and-other-alternative-therapies/
Cups, Needles, and Noxious Blood:
https://www.thechinastory.org/yearbooks/yearbook-2016/forum-mind-body-and-soul/cups-needles-and-noxious-blood/