Question about PET scans. I am having my first post Tx PET scan next Tuesday Nov 20th. I am not suppose to eat anything after midnight the night before. Are there any special types of foods I should not eat the day or two before that might cause things to light up?

Being at 12 weeks out of treatment, I have no saliva. I have been using Salagen for the past 2-3 weeks and it has not helped. I am thinking of not using it anymore and waiting for things to heal more. Any advice on if, when, or how long it takes to come back?

Thanks,
Tom