I have started using the Zapper today for candida, so I will let you know. I am also doing a parasite cleanse with "Triplex" (australian form of Clarkia ), and using large doses of Acidophilus, and garlic from an excellent company called GNLD, which is an american company speciallising in excellent suppliments. see their web site.
So all in all, those pesky bastards have got no chance surviving in me!
Cheers, Dan