Hi all. Just thought I'd share an interesting experience I recently had here in Australia. So a couple of months back I applied for a university study on Eustachian Tube Dysfunction. The study called for applicants with a history of hayfever and "difficulty popping ears" and the treatment was to take place in a hyperbaric chamber. I applied, in part, because I wondered whether receiving treatment in a hyperbaric chamber would make any noticeable difference to my tinnitus. But when I actually told them about the ringing in my ears, I was disqualified from the trial because "it's unsure how the hyperbaric chamber will affect my tinnitus". I don't necessarily mind being disqualified for the trial - who is to say it might not have had a negative effect on my tinnitus - but I thought treating it in a hyperbaric chamber was a common thing to do in Europe? Have I got that all wrong, or is this another example of the medical community having next-to-no-idea how to treat tinnitus? Would love to hear your thoughts.