Hi Destiny,
As Mark says, everyone reacts differently to radiation and its after effects. I've noticed that if I keep myself well-hydrated by drinking many glasses of water per day, it seems to alleviate some of my dry mouth systems. I've also had some success with using the Biotene mouthwash and then the Oral Balance gel before going to sleep. I also keep a CamelBack water bag on my bedpost so that I can quickly get water during the night. Best, Sheldon