Your best place to get an enema kit is: http://www.sawilsons.com. Use the Coffee enemas along with the anti-parasitics, the colon cleanser and liver flushes. Do it until you are cleaned out inside. I came back from colon cancer. If I can do it, so can you. It took me over 6 years, though, so be patient.
The zapper is only good for killing off viruses like when you are coming down with a cold. Otherwise, the Rife machine is what you want, and that is expensive,