I definitely had a significant candida problm with associated IBS, etc. which seemed to go away from using a good zapper with copper paddles and footpads. I also did some cleansing at the same time but did not do any commercial candida stuff.
This does not mean that it will work for everyone, but I have had a lot of positive feedback from when we sold zappers for health purposes.
ParaZapper products are available at http://www.petzapper.com
according to the terms posted there.