>Sound therapy
There is a method for alleviating ringing in the ears.
First you need a tingsha or similar tone producing instrument.
Begin by sticking a sound with the instrument about a foot away from the ear.
Then draw it towards the ear and hold it at a comfortable volume distance away (several inches).
Hold for a few seconds.
Draw instrument a foot away.
Repeat.
Anon had success with 2khz tone.