I am facing some skin issue .in my hand I used to wear silver ring .somehow it did not suit and it used to itch a lot and I used to rub it. Now it has spread a lot with white scars and the skin beside the infection is becoming like burnt black and then it that area again it is spreading. This has happened to my fingers. Now in my chest some round shaped blackish scar as appeared and gradually it is spreading. It is round shaped and seems like that portion is becoming blackish. I am tensed please suggest what has happened? Id it curable?