Just wanted to offer my 2 cents as a very, very long sufferer of candida. Nystatin didn't do that much for me, honestly. What has worked for me is caprylic acid, Bentonite clay, and psyllium seed and husk shakes along with oil of oregano. After having candida for 26+ years, being healed once, and had a relapse, the only thing that seemed to work for me was the above protocol. Just a thought, maybe the nystatin will work for you. Hope you can get some.