Unfortunately some drugs are not available in usa. You need to go to Mexico or Egypt to get them. In France Blasto used to be treated very well with arsenic coumpounds whihc are not available now.
Try S.boulardii it might help a bit. Take some omega3,6 to reduce the inflammation. Melatonin has been shown to reduce necrosis caused by some protozoan infection so you can take it but be careful if you drive it might make you sleepy.