More patients are looking into alternative cancer treatments, and more doctors are supporting them it that decision. A popular alternative cancer treatment on the rise is ozone therapy. Ozone therapy can be administered intravenously, transdermal (in an ozone sauna) and through insufflation. The therapy is less expensive than chemo, and effective because it increases the oxygen in the body and boosts the immune system. It is still advisable to speak to your doctor about it.