I just wonder why you think the zappers don't work. How do you know?? What didn't happen that you think should have? Remember, if you don't kill the infection they bring in, your symptoms may increase, but most likely won't go away with just zapping unless you have a frequency specific zapper like I got for my fungal infection aka 'cancer'. I did a post today about that. I totally spaced on that part because my diabetes and hiatal hernia weren't infected with anything, I don't think. At least, when I zapped I had no increase in symptoms--and the diabetes went away.