Untreated chronic pouchitis is pretty awful. I don’t know if you have a creative gastroenterologist, but there may be reasonable things you haven’t tried that are wiser than ozone. Possibilities include combination antibiotics (e.g. Cipro + Flagyl), other antibiotics (e.g. rifaximin, Tindamax, Augmentin), a biologic that you stop before having any future surgery, etc. Good luck!