I noticed it turned black about a week after my marathon and hasn't done anything since. It's growing normally and I've trimmed it. And I tug on it a bit, and there isn't any pain, but it isn't loose either. I don't mind because it's winter but I can't wear sandals at Botcon if this doesn't heal by then. I'd have to put a bottle of Jack Daniel's and a pink beard on it. Why ain't it healing?