Unfortunately, yes. It's a mouth ulcer, really, and I get them often, too. They stink.
I try to keep drinking fluids, like water, hot tea, etc b/c you want to keep flushing the bacteria (which are always in your mouth) out. I find that what works the best to relieve the pain is either anbesol gel, anbesol mint flavor, or this stuff called Kanka. This stuff is great, it forms a "crust" over the ulcer itself and starts to heal it, unlike anbesol which numbs it for about a minute and a half.
I tend to get these when I use listerine, switch toothpastes, or in the unfortunate case of biting through my lip. Those are the worst! Mine usually take a week to two weeks to heal to the point of tolerance. The most you can do is just try to stay away from foods that aggravate it--salty stuff and really sweet stuff. Advil can help too.
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"Never give up, never surrender!"
[This message has been edited by Angelene (edited 03-02-2003).]