I don't agree that you'll be "carrying a bottle of water for the rest of your life!" I don't! Sure, my mouth is dry, I must use liquid to get food down and waking up with my tongue sticking to the roof of my mouth isn't fun, but I do manage to walk through life without being attached to a water bottle. I can even talk for 2-3 hours straight without water these days....and I'm not quite a year out from radiation. Don't forget that we are all individual and our healing is individual.