Ozone therapy gives your body a little shot of diluted ozone to help prevent and treat diseases. It can be delivered via injection, IV drip, topical ointment, infusing the patient’s blood with it, or even as a gas. The method of delivery depends on the concerns being addressed. None of these methods involve breathing ozone or injecting gaseous ozone.
Doctors in Germany have been using ozone therapy since the early 1960s! It’s been around for quite a while.