Full disability. Food or any medicine.

This is for my grandfather age 90 approx . He is unable to stand on his legs since 2 months and always keep it folded. He has memory problem from 4 years but used to do daily activities and lil bit walking daily but now seams  like in no sense. And now from 15 days there is swelling in lower parts specially in foot and there ulcers keep popping in lower parts of body and in some days there is constant fever around 100-101. He feels immense pain in legs if touched. But unable to tell or communicate anything. Basics tests like BP and blood sugar are normal. Never consulted any doctors ever only consulted local doctors in village but no medicine is prescribed by them and they said the issue is because of age and memory issue. Please suggest any specialist in kanpur or Lucknow or is there any chances of recovery or it is waste to consult a doctor now because it is difficult to feed him food or any medicine. Thank you in advance.