Regardless of what you are doing, regular consumption of a good pro-biotic blend is a very good idea. Luella and I recently started using New Chapter Organics Probiotics All Flora product and we like it a lot. Lot of good ones out there, just be sure you do get a good one.
I might add that, like Johnny Apple Bomb, whom I have utmost respect for here, I tend to use colloidal silver when needed rather than on a regular basis and when I have used it I have used a lot. That includes gulping it down by the glassful for several days in a row on occasion. Never have had a problem with candida or any other problem which might be associated with colloidal silver.