You're probably killing off too much at one time. Try to ramp up slowly. Only a few minutes on each machine in the beginning. Increase the amount of time each day until you eventually reach the full time of the Beck Protocol. Any trouble and you reduce time or stop for a while.

Using ozonated water before and after using the machines is designed to help with Herx reactions also. I used distilled water.

The Colloidal Silver should be taken in small amounts also until you adjust the dose up similar to the machines. The silver should be ok as long as you have current control made with distilled water. Beck used tap water as he didn't want the silver to get everywhere in the body. Current controlled in distilled water is what I recommend and most are is using these days.

Eventually work up to at something like 8 ounces per day of 20 ppm silver. You can't really afford to use a commercial product with the large amounts used in the Beck Protocol. And you have no control over the quality of a commercial product.