Does anyone else do this?

Ok, so when I got my braces tightened they put something on the wire between my teeth to keep the wire from shifting. It has cut a big jagged line down the inside of my lip and it turned into a canker sore, so I have put canker sore medication on it and it hurts like a *****. Anyways, onto my question. Often when I have canker sores, although I've read to stay away from acidic and spicy foods when you have a canker sore, I intentionally eat those types of foods to induce the burning sensation. When this happens I feel less pain afterwards than I did before, i guess it kind of kills all the bacteria that is on the sore. I just wanted to know, does anyone else here do this or am I just a freak? :)