Thank you both for your help. Jeff is on his way back home today from Seattle. He flew through treatment with little side effect. He had nausea and dry mouth. He used the Manuka Honey to reduce mouth sores. He started using it the morning of treatment day 1. No mouth sores. We are not sure if it was the honey or something else but it was worth the effort not to have the sores. He walked to treatment 1 mile4 days a week!! I am amazed at how well he did. Thank you again for all the input. I'm sure I'll be back on here for more input as the doctors told him this will come back.. this will be what ends your life.