Hello.... Myself Dr. Pavan. Glad to answer the query. First of all its better to know the diabetic status and the peripheral artery disease status of the patient. Coz these are the top 2 causes for gangrene nowadays. And the presence of both is common in this age group. Healing is a problem when these conditions coexist. But nowadays the research on wound healing has advanced very much.
Next Steps
Kindly consult appropriate wound specialist for guidance on further treatment. Different varieties of dressing or if required, debridement helps in preventing the spread of infection and later can be given a proper cover.