This is a field that is still undergoing research. Ozone therapy is a form of alternative medicine treatment that purports to increase the amount of oxygen to the body through the introduction of ozone into the body. The American Cancer Society has concluded there is no evidence to support the use of ozone treatment in any disease.
Certain studies claim that breathing the ozone bubbled through olive oil or water is safe and beneficial. Some recommend this procedure for respiratory diseases such as bronchitis, asthma etc.
These studies claim that as ozone gas cleans up your body, the immune system responds, arteries and veins are cleaned, circulation improves with blood vessels unclogged, blood and lymph normalizes, inflammation reduces, bleeding stops, cardiac problems reduce as plaque is oxidized in arteries, the brain and memory respond to the increases in oxygen produced, heavy metals are chelated, tumor metabolism is inhibited and the outer lipid layer of malignant cells is broken down and destroyed.
This therapy has been proposed for use in various diseases, including cancer, AIDS, multiple sclerosis, arthritis, heart disease, Alzheimer's dementia, among others.
The United States Food and Drug Administration (FDA) reflects the scientific consensus that ozone is a toxic gas which has, as yet, no demonstrated safe medical application in specific, adjunctive, or preventive therapy.
Much of the concern related to ozone therapy revolves around the safety of blood ozonation. It is well established that when inhaled by mammals, ozone reacts with compounds in tissues lining the lungs and triggers a cascade of pathological effects. When infused into human blood, ozone produces reactive oxygen species (ROS) or free radicals, an over-abundance of which is known to cause oxidative stress and cell damage, and is implicated in the progression of some degenerative diseases.