I plan on using Colloidal Silver forever. Being a diabetic and, seeming to have fallen victim to every bacteria, virus and fungus there is, is forcing me to take some action. So, I will never be, as you say "totally finished" with my CS regimen.
My plan is to supplement with probiotics. I also wondered how long after ingesting CS should I wait to take the probiotics.
From what I've read, Colloidal Silver should help you greatly with candida. The CS will also kill many of the beneficial bacteria in the gut. So, I don't think you can wait for an extended period of time before you start replacing the "good bugs".