You just bought a basic zapper at around 30000 hz without proper copper hand holds or any foot device. It won't penetrate into the intestines to kill off anything that may be causing your condition. However it may kill of other parasites through out your body reducing the load on your immune system. With less to do your immune system can then concentrate on the condition.
Have you tried a good Aloe Vera product or ozonated water?
You are also now a criminal in the US, as the zapper is shipped across state lines and you have not informed the FDA to use it on yourself. Expect a swat team to bash in your door at any time.