Hi Rajani. hanks for your query and for using Health Care magic.
You friend seem to having sensory neural hearing loss
in left ear. She does not want to use hearing aid
She will need a detailed evaluation to find out the cause and extent of her hearing loss.
If its mainly neurological, the best option for her would be to undergo cochlear implant
Your friend should consult your ENT specialist
Hope this answers your query.
Thanks and Regards.