I had a heat rash at the back of my knee and obviously I itched it like crazy!!! I have a brown mole at the back of my knee a flat mole, I scratched over it and noticed it was a bit swollen like my heay rash but now it is healing but it is like I have scratched the color off of it and I am really worried!!! Any reassurance?? I have had the mole checked before I scratched it and it was fine but should it be that easy to scratch the color off a mole???