Hearing loss is a natural consequence of getting older. Our hearing ability worsens from our 30s or 40s & onwards and almost half of people over age of 50 have difficulties understanding speech in noisy situations. And when we reach our 80s, more than 75% of us suffer from a hearing loss.
I sure there are many possible causes and cures to look into, please consider exploring Type-3 (IgG) allergies. I was able to cure my tinnitus and Meniere's disorder once I was able to diagnois the problem as a powerful food allergy; see my sole Journal entry for more details. Good luck and I wish your mother well! (although we are not doctors some of us can share what's worked for us, as possibilities to consider)
we are not doctors on this site, just regular people that talk about medical conditions we are going through. you need to try anther way, but keep us posted if you would like
good luck
Meniere's Disease is a troublesome problem which will have symptomatic regression with treatment but has a strong possibility of it coming back over a period of time.Its a problem with the ear's balancing act and the spectra narrated by you fits into it.Tinnitus or Ringing ears is still a problem constantly harassing the ENT surgeon in his practice.There are many remedies from chinese herbs to vestibular sedatives in trying to improve the same.However, there is no one magic medicine which can bring about a complete reversal of the problem of the same.You can try to get her Tinnitus maskers (which can be purchased through the audiologists in practice) and it can help her in dealing with the problem better.The added problems of Diabetes and hypertension only make it worse for getting this symptom under control.You being an Indian, can get in touch with Dr.Anirban Biswas in Kolkata, who has vast experience in this field and has dedicated his entire practice to these kinds of problems.I wish you and your mother the very best and may she be hearing everything except the ringing sound soon.