It looks like it would be a good idea for your surgeon to take you to the operating room to remove any tissue that is not alive, such as the black or white areas. That nonviable tissue impedes would healing and can make you susceptible to infection.
These answers are for educational purposes and should not be relied upon as
a substitute for medical advice you may receive from your physician. If you
have a medical emergency, please call 911. These answers do not constitute
or initiate a patient/doctor relationship.