Welcome in H.C.M.
I have gone through your query regarding hearing loss
in your husband since jan 2012. he had already taken treatment under care of an E.N.T.specialist.
I would like to say that what are the chances of recovery depend on the Audiometery reports. You have not send the detail of report , so it is not possible to judge the extent and severity of lesion.
Please mail the audio report to know about disease of your husband.