Very sad to learn all this, but nice to see all the support and advice here. Everyone's different, but maybe my saga will give you some hope.
Coming back from Prague a few years ago, there was a family with a screaming baby in the next seats; that baby screamed for most of the long flight. Probably, it was screaming because it was in pain. In any case, three days after getting home, I came down with a severe ear ache. Two days later, all hearing was gone in my left ear. I could rub the outer ear and hear nothing. Snapping fingers an inch away were inaudible.
My regular doctor sent me to an audiologist, who did a battery of tests (including bone conduction), and concluded that the cilia in my ear had been damaged by the infection. He told me this was not repairable by any standard therapy, and that my hearing wasn't coming back: the fact that the bone stimulation showed the same loss as through the ear led him to this dire conclusion. He mentioned an experimental treatment—hyperbaric oxygen, or something. There was a local clinic that did this, but it was very expensive, not covered by insurance, and carried some risk of being consumed by flames (really; one is put in a chamber for an hour at a time with very high concentrations of oxygen—which is extremely flammable!)—so, a hard no. Also said no to cortisone injections directly into the ear.
Well, the prognosis turned out to be wrong, I'm relieved to report. The hearing did come back; slowly after about six months, but almost fully at last.
So hang in there. Don't sell your kit just yet. In situations like this, I often remember the doctor's opinion on that old TV show "Northern Exposure": "The body is an amazing self-righting machine."