Ok, with one of my projects in progress, I've been eliminating the Daft Barbie Smile by filling in the mouth with gesso. I did this in several layers (and I may have a couple more to go), and in between some of them I sanded a bit to make sure the edges were all smooth.
Now here's the bad part... in the process of sanding (using a good ol offbrand dremel head) I've managed to rub some dust from the gesso into the corners of the mouth. Even after I get done and paint the lips, this would leave this odd bit of 'greying' at the corners of the mouth.
Does anyone have a good suggestion for removing this without removing the painted on gesso? Or am I going to be stuck with having to paint or blush over it and hope the skin tone matches?