Thanks for writing to us.
The age of the patient and the history of injury ,kind of discharge from the site /any treatment taken are relevant and not mentioned.We can not conclude that it is fungal infection
Presuming that you are middle aged, kindly investigate the health problem.Most important complete haemogram,glycemic status,thyroid
,xray of the part,and Pus for culture and sensitivity.
In all probabality you may be suffering from Osteomyelitis
with Diabetes Mellitus
,otherwise the injury would have healed by conventional treatment.
In addition, pls also check for your HIV status . Immunocompromised individuals will have the same type of problem.
Kindly consult an orthopedic Surgeon with all the reports for further course of management.
Wishing you a Speedy recovery.,
Dr Lt Cdr ASN Bhushan.