I also suffer from crohns in my mouth. That is how they first discovered that I might have it before the small bowel follow-thru was done. I use the mouthwash as you describe above. But your description also sounds like you may have oral thrush, which during my flares I sometimes get due to our bodies decrease immune function and if you are on prednisone, remicade, humira, or 6mp these can lower your immune response. For oral thrush when the mouthwash will not work, you can try Diflucan 200mg qd or go straight to the nystatin oral rinse. The key to telling if it is oral thrush is a yellow covering on your tongue. My mouth is very sensitive and almost stings when I have this. I also get granulomas (red bumps) that appear but mine do not hurt unless they are the aphlous ulcers (the red with the white head that appears). I have had two mouth surgerys to remove the granulomas when they get to big. Hope you feel better.
35 yo--Crohns since 2000, Granuloma cysts in mouth-oral surgery X2 in 2000, Fistulas, joint pain. Kidney Stones. Dx with Migraines 2002 and Ovarian Cysts along the way. Dx with Fibromyalgia in 2007. Now receiving Humira, Topamax 300mg daily, Cymbalta 120mg daily, Prevacid 30mg, Maxalt, Vicodin and Ultram as needed, Fish Oil, and Multivits