Advice Please

I recently completed a 40 day oj fast with very little results. I am normal weight for my height, but I have dermatitis, dandruff, Acne prone skin, oily skin and fatigue. I have completed 7 day green juice fasts before and most of my issues temporarily cleared up and I feel great. I work from home and I have completed a number of cleansing regimes (schulze liver, humaworm, liver flushes, barefoots detox program and who can remember others). I think its time to pull out the big guns as I know that the cause of my problems is some type of fungus/yeast/bacteria that thrives on sugar. Is the fungus/yeast/bacteria present because of heavy metals, congestion, etc.? I don't know, but I a feel that Water Fasting is the only protocol remaining as the green juice fasting always creates cravings. Believe it or not, it would simply be easier for me to just cut it all out and stick to water. I have the following questions:

What type of water is suggested?

Are any supplements allowed such as a teaspoon of a minerals or other liquid that may help the body rebuild and cleanse? I was thinking a drop of oregano oil per gallon of water may be beneficial in helping my body kick out the invader.

I am happy with just water, but any advice to maximize results would be much appreciated. Thank you