[quote]The rule of thumb is that what you have at about 18 months is where you will be forever. [/quote]
That's exactly what my rad onc told me. Also depends on how many saliva glands got radiated. I still (and always will) carry water wherever I go. Dry mouth is a problem if I have to talk a lot, and foods are somewhat limited; dry stuff like bread, crackers, chips, etc., are nearly impossible and not worth the trouble.
Welcome to the 'new normal'.