Please have it checked by another Derm. I had one on my forehead for over twenty years. I was told repeatedly it was just a mole and nothing to worry about.
Well, one day it started bleeding and I was urged to get it seen again. This new DR removed it with a shave and told me it was nothing to worry about. Needless to say it was indeed melanoma and that started a whole new chapter in my life.
Hopefully yours is nothing to worry about, but give yourself some piece of mind and have it biopsied.
