You are defiantly not alone! They are ulcers? That is what it sounds like. Before I started remicade, I used to live with them. Would have up to 20 or more or so at once and some points. If I had 10 or under it was considered relief. I just learned to live with them the best i could. They defiantly do make it hard to talk, eat, brush your teeth etc. You are defiantly not a wimp. Those suckers HURT! I'm like you, I didn't find the mouth wash etc really helped. It seems like its just something that has to go its course, but unfortunately , with crohns, sometimes by the time one runs its course, 2 more will pop up and its like a never ending chain. Are you in a flare? Remicade worked wonders for me. Every once in a while ill still get a couple pop up, but no where near like I used to.
I do use extra strength oragel when I have a big one or one that's in a bad spot. It burns like hell when you first put it on, it burns for a few seconds, but it does numb it. Unfortunately not for long. Some nights when I have a big one or one in a bad spot, when i lay my head on the pillow, my teeth push against the ulcer and that hurts. So ill stick some oragel on it right before going lay down and usually that will last long enough for me to get comfortable and go to sleep.
I hope they go away from you soon, but you need to talk to your doctor about these, because crohns can cause these, and even though you may not be having any other symptoms, you may need to try a different medicine.