Hyperbaric oxygen therapy is a medical treatment that involves breathing pure oxygen in an enclosed, pressurized chamber. The therapy is used to treat decompression sickness, carbon monoxide poisoning, and other conditions caused by insufficient oxygen supply to the body. It has also been used to speed up the healing of wounds after surgery or injury. Hyperbaric oxygen chambers can now be found at hospitals and clinics worldwide. Still, there are some common myths about hyperbaric oxygen therapy that may lead people away from this potentially life-changing and highly effective treatment. This article will explore these myths and provide information on how they are untrue.