You will not notice anything either inside or out for a couple of weeks, but eventually you will get blister type sores inside your mouth and for me anyway, the exterior burns didn't happen until near the end of radiation. I think (but I sure could be wrong) that having an area such as the face radiated - an area which gets alot of sun and is not quite as tender as the neck area - MAY result in less severe burns. I found the blister type things inside my mouth would break and bleed a bit, but I just kept the area clean and kept taking pain killers. Do not try to be a martyr/hero with regard to pain killers - there is no prize!!

Good luck.

Donna