Dear sir I understand your concern.Let me tell you one most important point.good diabetes control is very important for fast wound healing. Then follow some tips in dressing. 1.don t use betadine(brown fluid) 2.don t use spirit and hydrogen peroxide on wound 3. clean wound with normal saline only 4.apply ointment like mupirocin 5.wound showing more pus or leg turning black and dusky are very bad quickly see your doctor..... i suggest you to check blood supply of feet by Ankle brachial index. I honestly hope this helps you as you work towards identifying the best drug and dosages for your diabetes. Feel free to come back if you need more information. I wish you good health. Rate my answer if you fell its worthy Dr vamsi Diabetologist