hi, i got a wound on my head looks like a dandruff wound, covered with dandruff,, n some times itchy too,, its been there for more than a year now, i tried herbal meds like lemon but it didnt help me,, i stopped using hair conditioner also,i just use normal shampoo, i dont have flies on my head, n i bath every day, but still this wound gets spread,, please help me,, what shall i do?