I have a really bad cold sore on the inside of my mouth. My mom suggested I swish a solution of warm water and salt around my mouth like you would with Listerine. It seems to be working, but not nearly fast enough. I put some numbing gel shit on it, which helps a little, but I keep cutting it open when I eat and talk. It's been torturing me for like a week and I'm pretty desperate to get rid of it. If I were to take a pinch of salt and press it directly onto the sore, would that make it heal super fast? I know that sounds incredibly stupid, but I just thought I'd ask before I subject myself to excruciating pain for no reason.