Help my mom hear again.

My mom suffers from a chronic condition called meniere's disease. She suffers from vertigo, dizziness, balance issues and hearing loss. She's profoundly deaf in one ear and moderately deaf in the other. She's having surgery to get a cochlear implant, for one ear, which her insurance will partially cover but they won't cover the hearing aid that she will need in the other ear. The cost of that ONE hearing aid is over 5k. She is a nurse and hearing is very important in her line of work. Any help will be appreciated. Thank you.