Glutamine powder also helps in tissue repair. I was given Juven by my cancer center, which is a targeted therapeutic nutrition drink, OTC I think, with glutamine powder, to support tissue building and to help build and maintain lean body mass. It's made by Abbott, same makers as Ensure, and have different flavors, not bad, taste like Gatorade at least the fruit punch.

Some report good results with manuka honey in healing, but it's expensive. I just swished and swallowed organic virgin coconut oil, and or distilled aloe juice instead.

Virgin coconut oil with salt and baking soda rinse is also being used, and may be a little more beneficial than salt and soda alone, to help with mucocitis.

My last treatment I was given prescriptive NeutraSal, supersaturated calcium phosphate rinse, to help with dry mouth and mucocitis. I found it better than salt and baking soda rinse as far as taste. It's a dissolving powder in individual packets you mix with water, can be used 2-10 times a day.

Avoid foods that are too hot, spicy, acidic, sharp textured to help prevent irritation, and ulcers.

Hope this helps, and check with your doctors first.