CFS is not caused by a virus, it can activate it but the cause was there before that and will not be affected by these type of treatments. Most people have those types of virus and yet they do not have CFS.
Did your girlfriend develop CFS?
Some people claim that Increased Digestive Permeability which is always present in CFS, is caused by candida because they falsely think that hyphae are implicated in causing the IDP. Viruses cannot cause it, but larger biofilm creating micro-organisms can cause it, bacteria, yeast and fungi. There are thousands of different micro-organisms which can cause it and they are all of varying resistance. Some are easy to defeat whereas others are resistant to most things.
Think of it as a respite because it will most likely return as soon as you are tipped over the detox cliff once again.