I'm no expert by any stretch of the imagination, but I think the leaves that were already damaged will remain that way until they die and fall off. Early in my plants lives I cooked the shit out of the top set of leaves with heat, 2 weeks later and those leaves are still there. The parts that were cooked are good and dead, the small parts, like yours, that weren't cooked, are still alive.
Again, I think your in the clear in terms of further damage, providing you got your nutes and such in order, the plant should recover for future growth. There's enough green left to live on, but it might be pretty stressed out and growth might suffer.

At least your trying, right? Good luck man.