Effects of Methylene Blue on Gut Biome?

Please, could you address the effects of MethBlue on the gut biome? The MethBlue seems to help with my so-called Chronic Fatigue Syndrome, especially improving mental clarity. I hypothesize this is because my underlying problem is mitochondrial, and the M-B helps with human ATP function. At the moment, I also have candida overgrowth. I just read on pubmed that MB actually inhibits fungal ATP function. (I had never thought about mitochondria being so different across species! ) So... in theory it is at once good for human ATP and bad for fungal ATP? That would be handy!