Hello Brett,
During my Radiation, I also lost my Saliva. I drank water and still do. I was told by my Oncologist that he could prescribe some medications to try to induce the saliva. No promises, just some attempts.
I read up on it and found that the side affects to me were worse than the problem of not having saliva. So, I opted not to do the meds. Another option that was mentioned was Acupuncture. I did not try this, but I know of a friend that did, with good results.
Myself, I keep a small bottle of water with me at all times. I have had success with Denetyne Artic Ice chewing gum. It is minty and brings a tear to my eye when I first start chewing it, but it settles down in a minute. When I do this, it stimulates the saliva and I don't need to drink as much water during my working hours.
The only down side for me is that the constant chewing then tightens up my neck muscles. I then massage my neck doing the exercises that the Cancer Therapist taught me for Lymphodema in my neck. It is just another part of my daily routine.
Saliva is very important in the protection of our teeth, since I don't produce much, I do a daily routine with the Flouride Trays to help protect my teeth. So far, so good.
Lotion on the neck, I still do this, it helps with the tightness. During treatment, I put it on at least 6 times a day if not more. I was told to do it 2-3 times, but found it wan't enough.
My Best to Everyone.