My scalp felt like it had a scab on it for awhile, but when I scratched at it, nothing would happen. Now, I was scratching at it again, and when I pulled at it, it came out attached to what I think is either hardened pus or oil, about the size of a tic tac (haha, great visual). Ever seen of or heard anything like that? Pretty sure it also left a small, open crater on my scalp, too!