I am not an expert on "zapping" but in macrobiotics, as well as other philophies, it is not recommended to cook on an electric stoves, use microwaves, use electric blankets or sleep near digital applicances, such as alarm clocks, etc.....Just thought I would throw that in. You might want to ask Andreas...another forum on this site. I know he feels that if you do liver flushes, kidney flushes and eat right, parasites come out on their own. There is no need to even use herbs in that regard.
I don't mean this to be either an endorsement or denial of anything in particular...just info.