Welcome, CathyG

Mucositis is very common, almost guaranteed, and so is oral thrush, basically an out of control yeast infection (candida). The rinsing will help, but if the salt burns just use the baking soda. Some radiation centers spray your mouth, probably saline solution, every day, which helped me a lot, and was prescribed NuetraSal, supersaturated calcium phosphate rinse, which is by prescription, and helps with dry mouth and mucocitis.

Stay away from foods that are acidic, spicy, sharp textured, too hot, as not to irritate the mouth.

Some have used Manuka honey and swear by it. I never used it, but heard organic honey is just as good. Glutamine powder helps healing, and can be used to rinse with and or swallow. Some centers give out Juven, from the makers of Ensure (Abbott) which is a specialized powder containing Glutamine for tissue building, and has better flavor (fruit punch) than other Glutamine powders I tasted.

Another was aloe Vera juice, rinsing and or swallowing. I used the 100% distilled type found in health foods stores for healing the mucosal lining, not the sugar aloe Vera drinks. It can also be a little laxative if too much is used, but with pain meds, sometimes that is desirable.

I hope this helps.