Do not undertake the treatments if you are pregnant, have recently had a heart attack, or suffer from hyperthyroidism. And avoid them if you are sensitive to ozone. Hydrogen peroxide is officially contraindicated for internal use. If you are allergic or sensitive to this compound, you should avoid external contact as well. The risk is estimated at one in 5,000.
Every chamber is equipped with a quick-release mechanism.
If a seizure occurs, the oxygen will be immediately released and the seizure will subside. Minor side effects include popping of the ears similar to that experienced in a descending aircraft. Sinus pain, earache, and headache are other possible side effects. In fact, pain may occur in any body cavity where air can get in but can't get out. For example, dental pain may occur if a filling has trapped air beneath it.