How such I tell you, my father is 66 years old, 7 years old with diabetes and an accident happened last year a ulcer came out in the plant because he did not have controlled the sugar and at that time they took 2 fingers, now he has had forA year a small wound in the upper part that does not close it well, they took more piece of feet, has been taking to the princycps every day, then 3 and now it goes twice a week, it has not worsened, it has improvedLittle by little, but I want to know if someone has left the ozone at some point, I know that if it works in a certain part because it is scientifically proven and I still have the sources, greetings I hope your experiences