It's best if you go over to the Zapper Forum. There are plenty of people over there who have experimented with those devices that might be able to give you information.
I don't know how effective those devices are for your condition or for other ailments. I know that there are testimonials for some conditions; however, I've yet to find any clinical trials, or serious studies showing that those devices work. Still searching....
My main purpose on this forum is to provide clinical based information or studies indicating effective treatments so that people can look into the data further.