My thumb scar is still hypersensitive a full three months after my cut. I've got feeling back above it (it took maybe 6 weeks to come back) but it's still tingly when I stroke it, like it's been "asleep." The scar itself? Ow. I rub it sometimes according to proper scar massage techniques as taught by chaiya (who's trained) but it hurts, even, to do that. The surface is tender, and the underlying tissue is still sore. I have no idea how long that will take to fix itself.