Hveragerthi brings up some good points. Oxygen and oxidative therapies should be seperated. Ozone is an oxidative therapy similar to Miracle-Mineral-Supplement that gains its effectivness by oxidizing whereas oxygen therapies oxidize but thru much different and ineffective means.
Isn't much of the argument about Warburg's research on oxygen and cancer (Nobel Peace Prize). His research showed the difference between health respiration of the cell (oxygen) vs. an unhealthy cell (lactic acid). The unhealthy respiration mode (lactic acid) is caused by free radical damage coupled with nutrient deficiency.