One month back, in accident, my scalp was damaged, that had wound, but I was using the "INTADINE" (water-soluble microbicidal ointment, and hydrogen peroxide solution, and "INTADINE" (microbicidal sprinkling powder, but hair surrounding the wound their color changed in to light red, the hair color not changed after head bath, what is the reason for this color, and how to get color back my hair, please help me.