Back in September I was in Italy & I started ozone treatments (drawing 50 cc of blood, ozonating it & reintroducing it in the bloodstream) the results were amazing, I started feeling better after the first treatment. I was getting one treatment a week. In mid Oct I came back to the US and found a doctor who does the same treatment, the results here were not good, I actually felt much worse. The amount of blood drawn is the same, the concentration is the same and so is the type of anticoagulant used, and yet the results are opposite. I did some research & found out that there are 3 types of ozone generators, ulta violet, corona discharge and cold plasma, and only the cold plasma does not produce nitrous oxide, which, I read can create problems for people with CFS. The doc here in the States has a corona discharge, while my doc in Italy has a cold plasma unit, I have gone back to Italy and am getting 2 treatments a week and doing very well. I would like to let everybody know that if you have tried the treatments and did not have good results, maybe it could be the generator. I am sure the right generators exist is the States as well. Good luck to all.