We didn't do much to the rash until it got dry. Then we used Aquaphor ointment. If you are starting radiation though, be sure NOT to put it on before tx.
Be sure to have the BMX mouthwash and do peroxide/water and salt water rinses a few times a day at different intervals. The BMX helps to do just before you consume anything. It just makes everything numb for a bit.
As for the mouth sores, just watch for thrush. Otherwise ride it out with the BMX, rinses and pain meds.
These are all things we did. I'm sure others have their experiences too!
Sounds like you were amazingly prepared food wise!! Good job. Scrambled eggs sometimes work because they slide down pretty easy. Just try for the 2500 calories a day.
You have a great grasp of what is happening. Keep in touch.
Kathy

Kathy wife/caregiver to:
Kevin age:53
Dx 7/15/11
HPV16+ SCC Stage IV BOT/R
Non smoker, casual drinker
7/27/11 Cistplatin, taxotere,5FU 2/3week sessions, followed by IMRT 125cgy x 60 (2x daily) w/Erbitux weekly. Last rad 10/26/11. Last Erbitux 10/27/11
PEG placed 9/1/11 Removed 11/8/11
Clear PET 10/12 and 10/13 and ct in 6/14