Hello, I am familiar with dr Clarks zapper.
It sounds like you need a kidney and liver cleanse. drclark.com
Also the new frequency generators available, you wont have this problem. use wrist straps or pads for the electrodes.
and look at the frequency list. over 3000 diseases http://www.huldaclarkzappers.com
I use the VariGamma, cured my macular degeneration among other things.