I received my Electronic itch stopper 2 days ago. I bought the $49.00 one. As far as I'm concerned it has payed for itself already. I'm right in the middle of a dose of the hives which I get now and then and they drive me crazy. I've tried all kinds of anti itch ointments, Benadryl etc. and nothing helps. Well since I received the itch stopper I can honestly say that I've been almost itch free. I don't know how it works but I do know that it gets very hot and sometimes I can't hold it on the hive for the full twenty or thirty seconds without taking it off and putting it back on once or twice, but it hasn't actually burned me and the itch dissappears for at least 5 or six hours. Most of the time more. Some of the hives haven't started itching yet after 2 days. I don't think it actually cures them but it sure relieves them. And believe me I have lots of hives to try it out on. I don't know if it's just the heat or what but I do know that it works for me and I'm sure glad I bought it.