I’m starting to form the opinion that the nystatin down the throat doesn’t work becuase the fungus covered by biofilm and mucous, and so protects the candida. Maybe Diflucan works becauuse it reaches the fungus from the colon wall, and so is under the mucous with the candida. But, the nystatin goes through the gut and so sits on top of the insulation blanket that candida hides under.
Hot water washes this away I believe ( I think that is the gunk that’s coming out) and so then the nystatin can access it. Maybe you can just do hot water enemas and enema tablets.