I am having  nerve deafness where my heearing nerves of both ears are damaged since last 16 years following a disease and intake of inj streptomycin/amikacin.. before that hearing was normal. now with hearing aids alao , problem exists and degree of loss progressed since the beginning.. audiologist has suggested that apart from the hearing aid, to strengthen the ear nerve, and to reduce further worsening,, vitamins  and antioxidants should be taken as per doctor advice... now which vitamin antioxidant to take ... please suggest and if any treatment