HELLO DOCTOR,I AM A STUDENT AND MY PROBLEM IS SCALES ON MY EAR.IT IS BLACK IN COLOR,BUT WHEN I TRIED TO REMOVE IT,THEN BLOOD CAME AND AFTER CLOTTING IT AGAIN BECAME A BLACK SCALE.I TOUGHT IT IS A BLACK SPOT.BUT ON ONE EAR,TWO SPOTS ON PINNA AND A BLACK DRIED SCALE ON UPPER EAR.I MEAN SCALE AS A BLACK COLORED COVERING.DOCTOR,WHAT MAY BE THE REASON???