Ozone therapy uses ozone, a colorless gas made up of three oxygen atoms.
Some researchers believe that ozone has therapeutic effects and the therapy has been studied and used for over 150 years.
A layer of ozone is found in the earth's stratosphere. Its primary purpose is to protect the earth from the sun's ultraviolet radiation, most of which it absorbs.
In medicine, ozone therapy is used to disinfect and treat conditions by disinfecting the area around them, improving the body's intake and use of oxygen, and activating the immune system.
Using a gas as a medical treatment is unusual, so there are special techniques that are employed. Ozone can also be toxic when inhaled