My LLMD has me on a similar routine to this. I am flushing the toxins and Candida from my colon using green coffee/green tea enemas and taking pulse-doses of oral Saccharomyces Boulardii to attack the Candida. For me this is working and is nothing short of amazing.
My understanding is that S. Boulardii feeds on the Candida and leaves the other bacteria/yeast alone. Like most flora, you do not need to take S. Boulardii everyday. Just long enough to establish a colony and then once a week to maintain the colony.
Im under massive, longterm antibiotics so my situation may be different than most.