Hyperbaric oxygen treatment is often used in the center with easy access to hyperbaric chambers. Several authors claim benefits but a satisfactory prospective study has yet to be reported. Hyperbaric oxygen treatment involve placing the patient in a compression chamber increasing the environment pressure within the chamber and administrating 100% oxygen for respiration. It may be helpful for patient with complications, experiencing a poor response to therapy or with recurrent cases. The real value of hyperbaric oxygen therapy (HBOT) for Malignant Otitis Externa remains unclear.