I have high frequency single tone T. I have had good success with Gingko Biloba 120mg once a day. Sometimes I stop taking it just to verify it is working, and the T always gets much louder. It doesn't work for everyone, and it may someday stop working for me, but I'm pleased with the results so far. Wearing earplugs is not a treatment. The damage was done years ago. Some sufferers experience varying symptoms for years, while others experience constant symptoms. It is one of those conditions that is hard to treat with any sort of consistency. What works for some people has absolutely no effect on others.