Suggest Treatment For A Bruise On The Skin

Dear Doctor I got my Heartbypass done in 2005 aug. I developed compartmental syndrome in my left leg. Emergency surgery prrformed and subsequentlyskin graftig done on both sides of the leg.I am a diabetic and hypertensive patient.I walk 3to4 km every day and sugar ,bp under control. 3 DAYS AGO I GOT A BRUISE IN THE SKIN GRAFTED PORTION AND1CM +1CM SKIN GOT PEELED OFF. PLEASE LET ME KNOW WHETHER SKIN WILL GROW OR WHAT IS TO BE DONE. THE PLACE IS GETTING DRIED I AM APPLYIG NIBASULF POWDER