In concerns over the PEG tube, its better to be safe then sorry. I still have mine and should get it out on the 18th of this month :-). I am eating everything under the sun and am not a bit sorry i got the tube. It saved my life and gave me the stregth to continue with the treatments by giving me the neutrients that i needed. In fact its nice to take meds through that taste nasty or that can trigger a gag reflex like MOM YUCK. But check with the pharmacy first and make sure you can get liquid or you can crush the meds you are taking (let your Dr. know you want to crush the meds and put through the tube and he can perscribe the right ones). There are ppl here that did without the tube but i couldnt have made it. It sounds like he is getting pretty bad sores in his mouth already and it wont get better anytime soon. Radiation is the gift that keeps on giving even when its not being given.My mouth was very very sore a month to two after tx's were finished.i was finished at the middle of may and seemed like eternity till anything started to resemble healing. Keep him comfortable with pain management, and keep nutrition up and hydrated.Good luck and hope this info helps some.
Bob Grey