About 9 months ago I had an excision of a dermatofibroma from my forehead. The doctor used 6-0 nylon external sutures and 4-0 vicryl internal sutures (the external ones were removed a week after surgery; the internal ones were to dissolve on their own). Since the surgery, the cut itself healed in a nice straight line, but I've had really persistent, somewhat scaly redness around the excision site, about the size of a thumb's nail. I'm beginning to suspect that perhaps the stitches haven't dissolved and I'm still having a reaction to them.
The area doesn't feel painful, itchy, or tight - it feels like normal skin except a little rougher and red. Has anyone ever heard of vicryl sutures failing to dissolve? How can I tell, short of cutting the area back open, whether there still might be stitches hanging around in there?
Thanks!