Hi LWP
I had similar to you dissection with radiation I used a water pick with club soda daily it seemed to keep my mouth cleaner and not as many sores, I see your a Canuck as well I found that Timmy icecaps really soothed plus gave 540 calories to help with calorie intake I know high on sugar but calories are calories, hope you start feeling better my wife is a little horsey as well here on the island of van.
Best wishes ken