Nystatin + diet worked for me. According to my doctor, both are required. He had patients only willing to do one or the other, but those people did not get better. I really think the nystatin + diet combination saved my life. I was very sick.
For the toxins, I used Bentonite + psyllium. That made a huge difference, and eliminated many of the symptoms.
I did research the nystatin in medical references. As you have already been told, it is inert. It passes through your body without being absorbed, killing all the nasty candida on the way. It is not processes by the liver. Direct contact is required to kill the yeast. According to my doctor, that is why the powdered form is required. He found that nystatin pills were not effective, and he believes it is because there is not enough surface area to kill enough yeast.
If you are working with a doctor who is willing to try this, do think about it.
Good luck to you.