You might look at Dr. Lee Meritt's site, Medical Rebel. She believes virtually all diseases are caused by parasites and thinks highly of Ivermectin. It has a long history of being used safely. As a nurse assistant, I observe that those who use alternative treatments fair better than those who use only pharmaceuticals. God Speed His blessings to your father.
Poppy, I am so happy that you are feeling better. God listens to the prayers of the righteous.