This is something that I've been suffering for a fairly long time now.I can go months without one, then all of a sudden my entire tongue will flare up in painful lesions that often last longer than a week. The pain is unbearable and it effectively stops me from being able to talk...firstly, can anyone suggest a way to prevent these, or a possible cause for themsecondly, once i have them, what can i do to get rid of them?thanks