Talk to General Physician on Bed Sores

My grandma was heart patient from the last 4 on 3rd of January she faced paralysis on the left side which was recovering day by day. Suddenly severe ache and cold in right leg started. Doctors declared it thrombosis in femoral artery. When thrombectomy resulted fruitless. Doctor suggested amputation of right leg. During all this she also had bed sores on the sacrum. Which is spreading day by day and no cream or bandage is healing it. Also we are changing her sides right after half an hour. Kindly suggest us something that could heal it. And the concerned doctor also