My grandfather (65+) was a diabetic patient he had injury in his leg fingers, we contacted doctor and he advised to remove the finger as it Is very bad in condition and we did the same. Now after 10 days of monitoring there is a black skin appearance at his near by leg fingers (doctor saying that is due to blood not reaching those places properly) now doctor says to remove upto leg ankle as blood flow is not proper upto that areas. Is there anyway to save my grandfather.