1) Digestive enzymes (protelytic (sp)) read Dr. Kelley who used high doses of enzymes to erode the tumor coating so that the WBC could penetrate. This is from Dr. Beard's research back in the early 1900's.
2). Apple Cider Vinegar
3). DMSO I have been taking DMSO internally -Dr. Pittman used DMSO along with ozone with the belief that DMSO would erode the protective coats of viruses so that the ozone would "pop" the viruses.