Transcutaneous electrotherapy for severe tinnitus.

In about a third of cases of severe tinnitus, transcutaneous stimulation for a few minutes by means of electric square waves gives substantial improvement. This very simple treatment must be repeated two or three times to achieve success. If an obvious improvement is not obtained after two or three attempts, failure must be considered as certain. The parameters of these stimulations are described and clinical results are reported. The mechanism of the improvement is uncertain.