I have a theory that many people who have other health issues-autoimmune, chronic inflammation, etc., may also have tinnitus or ear problems that are slow to heal due to their lowered immune systems. This is the case with any other health issue, so why not the ears? I also have had other health issues (diagnosed with ME) which I'm guessing is preventing my ear from complete (or near) recovery, even though it has improved quite a bit. What are your thoughts on co-health issues? Can any of you relate?