I am having a tough time getting a one inch piece of shed off the back of my BP's head. I have soaked several times and used towels after to let her go through and get the piece off with no luck. I was told to wet a cotton pillow case and leave her in that on the warm side of her tank for a night and that didn't work. If I just leave it will it come of next time she sheds or will it cause other problems? The shed does not encirlcle her. Thanks for any tips...