Mel, my husband found that an OTC product named RinsiNol helped his mouth sores alot. Also, he liked Lidocaine 2% viscous [by prescription] for mouth sores.Also ask your Doc about the "magic mouthwash" that many Docs use [each one seems to be a little different] Keep track of everything you try, what it feels like and if it helped or not and how long you used it. Sometimes it won't work at 1st and then later it will. Frustrating, but good info for you to have.Remember, where there is a will, there is a way. Amy in the Ozarks