Potential side effects of hyperbaric oxygen therapy include sinus pain, ear pressure and air embolism, according to the U.S. Food and Drug Administration. Temporary nearsightedness and seizures are also possible side effects, notes Mayo Clinic. Furthermore, the oxygen-rich environment increase the risk of fire.
Patients suffering from decompression sickness are among the most common types of people to receive hyperbaric oxygen therapy. Decompression sickness usually impacts scuba divers. The therapy involves placing the patient in a pressurized room or tube, which helps him breathe in more oxygen. During this therapy, doctors increase the air pressure to three times higher than normal, notes Mayo Clinic. The excess oxygen helps the body fight bacteria and release stem cells, which encourage healing.