So I have this horrendous sore in my mouth that feels like it is getting worse. It's along the bottom of my gum line inside my cheek. I've had it for a few days and today I can't touch the outside of my cheek or it hurts (more, it constantly hurts), also, I can barely open my mouth wide enough to eat. I gargled salt water this morning and will probably gargle more later. This is seriously the worst sore I've had in my mouth ever. I don't even have any clue where it came from. I'll take tips on how to make it go away if you have them, but I'm mostly just making a thread to make a thread.