So either Sunday night or Monday, I can't remember which, I noticed a bump in the right corner of my mouth. Now I know there's little bumps there naturally, but this one was a little swollen and hurt when I applied pressure too it. I did squeeze at it, didn't really get much out of it, it was pretty watery. I've been squeezing at it, then putting astringent on it followed by Neosporin. It feels pretty sore, and hurts when I open my mouth wide. It doesn't hurt for me to push on it but if I rub it, it eventually stings a little. Doesn't itch, and I don't recall any tingling or numbness or burning before I noticed the swelling, but I still keep getting the horrifying thought of what if it's a cold sore? I can't recall ever having one in my life. Someone please tell me what I should do