People who suffer from tinnitus largely either suffered from depression or stress-related anxiety before the onset of the noise. This fact, in part, explains the efficacy of hypnosis in the relief of tinnitus. For many decades it has been known that hypnosis reduces stress, anxiety, and phobias. Now we are learning that hypnotherapy is effective in the treatment of depression, and, now tinnitus.
When a person experiences tinnitus or any illness, there are emotional clusters of feelings attached to the illness within the neurology of the individual. In psychology, these are known as "state-dependent memories." The memories are so powerful because of the emotional attachment to them. With tinnitus, the emotions can run the gamut from anger to anxiety and distress to depression.
It is this form of hypnotherapy for tinnitus reduction that has been studied on several occasions with results of measurable improvement ranging from about 2/3 to 3/4.