Hi AK,

Radiation does a lot of damage to the oral cavity. I had lots of sores and other weird things things happening to my tongue, other areas inside my mouth and also the skin in the radiated area. Discuss all issues with his doctors. There are rinses (magic mouth wash) which helps with some of the issues, and creams that can be put on the skin (but never before the treatment, only after),

Taste is one of the first things to go unfortunately. For now it is all about getting the right nutrition so use the blender to make healthy and high calorie smoothies.

The next several weeks will seem like the longest weeks of his life because so much time is spend getting treatment, going to doctors and living with the aftereffects of treatment. Focus on the future - that is what kept me going.