What 100% of the people killing things with frequencies has found, and/or killing parasites with herbs etc experience with "herxing", is toxic dumps. No, I would not want to be breast feeding, or pregnant, while stirring up metals and other toxins in my own body. It's not a "maybe" thing that toxins need to also be addressed with killing pathogens, it's a fact that everyone on the Rife forum has experienced for themselves.