I am not a cancer patient myself, but I have seen first hand how painful these mouth sores can be for cancer patients. Cuprident makes a natural toothpaste and oral foam rinse which are all natural and help to heal these sores. If you would like more info go to: http://www.cuprident.com/oncol.php

I found Sensodyne very helpful during my treatment.

I was fortunate to be in Louisville when they did the clinical trials for Cuprident. It allowed me to continue to eat soft foods through my entire treatment (pretty rare) it lessened the mouth sores to a great degree. It comes in a natural toothpaste or mouth foam. If you have time starting on the toothpaste before treatment and moving to the foam during treatment was a great option for me.