Oxygen multistep therapy (von Ardenne) was applied in 28 patients suffering from an idiopathic sudden hearing loss. The oxygen therapy consisted of a multistep short procedure, each of which lasted for 15 minutes. The results of our study were evaluated by means of standardised statistics confirming the effectiveness and even the superiority of the oxygen multistep therapy in comparison with any other treatment, and also in view of the spontaneous remission rate in cases of sudden hearing loss.