Not sure how much you got on it, but I use a cotton swab and acetone. If the spot is small, I use a q-tip. Do not put a lot of pressure on it, and keep the acetone from drying out. It will eventually soften and if you can get under the edge, sometimes you can carefully pull on the edge and it will pop off. You just have to be patient. I have also used CA debonder as it does the same.