hat's not exactly how it works (some people are proceeding with stem cell therapy -- right now, without chemo or radiation)
And stem cells are still really up there. I think people expolarated a universal cure for hearing loss b/c someone noticed that it was listed as a condition that could be treated by stem cells. I think it started when someone undergoing stem cell treatment for MS noticed his hearing improved. Autoimmune hearing loss can be a SYMPTOM of MS...Stem cells treat autoimmune conditions. It does not mean it would treat hearing loss in general.
Quite frankley, I think we need to put a cure for hearing loss on the very back burner, and concentrate on cures for things like Alizerheimer's, profound and severe intellecutcal disabilty, mental illness , kidney and liver failure and all sorts of issues.