The Cure For Tinnitus or Ringing in the Ears
"Vitamin B12. Nearly half of all tinnitus patients are deficient in this key vitamin. Many people with low B12 levels experience complete resolution of their tinnitus when given the methylcobalamin form of B12 . Take 3,000–5,000 mcg daily for one month, then reduce your intake to 1,000 mcg daily as a maintenance dose..OR try the injection for the first while it gets directly in your bloodstream and works quickly. You can actually learn to inject yourself in the thigh area too.
Have you tried ginkgo biloba? A lot of people are positive about it. Check it out here: http://sagaert.eu/ginkgo-biloba-supplements-help-tinnitus/
https://www.ncbi.nlm.nih.gov/pubmed/23909117 it seems B12 may not be so effective, but Korean Ginseng has recently been proven to be effective: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4582451/