I've this stupid frikken canker sore on the underside of my tongue for the past few days, and it's making me MISERABLE to put it mildly!!! It manifested itself on monday night as what I had originally though to be a small cut. The next morning I woke up with a throbbing pain, and it hurt to drink, spit, talk, and eat. Initially I tried to just suck-it-up, but I gave up when I realized that it was making me feel ill as well. Seeing as how I had had enough, I picked up some OTC medicated Gel with Benzocaine (Zilactin-B) that's "specifically formulated" to fight cankers. You're supposed to apply this stuff to the surface area, and let it sit for a minute as it coats, protects, disinfects, etc... but so far it's done little to anything to help. How long is this stupid thing going to annoy me for? What the hell is the PURPOSE of a canker sore anyway? It's not like I don't have enough going on that I've gotta deal with this painful thing!!! Moe.