I understand the predicament you're in, but don't let your guard down. There are many people out there who profit from people's suffering. This is perfectly fine and ethical when there is an evidence base to back up one's claims.@Ed209, I had dexamethasone IT injections at Paparella in 2010, and then at Shea in 2011 similar IT injections, perhaps with lidocaine added. I not sure what exactly was in their injections but both places were covered by my insurance at the time.
It seems a lot of journal articles say " no conflict of interest" on the bottom. The one I quoted was from The International Tinnitus Journal created by Dr. Shulman. I guess I could contact him and see what he says? I would consider his opinion to be valid. I'm just looking for some kind of relief, to be honest with you. AM-101 was FDA approved as far as I know but my understanding is that it didn't work for tinnitus.
When something is still experimental, however, it should be treated as such, and not used to exploit people. Participating in a clinical trial doesn't cost anything other than one's time (as long as you fit the criteria), or some form of remuneration is usually offered.