She wondered if it was creating enough suction to break capillairies. Like when you get a hicky, or if anyone has had the Traditional Chinese Medicine Cupping Treatment, or when I was a kid I would put a cup over my mouth and inhale and create a suction, but then my mouth would be blue for awhile. lol
I didn't really have an answer for her, except that they are approved by the FDA and people have been using them successfully for a while without any problems like that at least that I have heard of. Then I remembered the holes! Is that what the holes are for? To keep the suction from being so great as to cause damage to the blood vessels? When I try to take it off it is pretty well sealed on there and if I try to pull it out without breaking the seal - well, I can't.
So just wanted to get some perspectives from more seasoned users. Thanks!