Cupping anyone?

Cupping is another curious Asiatic technique that seems more quackery than reality. Here is an attached video of the process, cant this lead to embolisms under the skin? I can't grasp how cupping could be of any use other than leaving ugly welts:

https://youtu.be/fkF_pm637uY

via International Skeptics Forum http://ift.tt/1Qvkrfc