Hi Annie,
I was advised to use Essential Vitamin E cream 3-4 times a day, but not in the 2 hours prior to treatment. Sorbelene is good, too, but nothing with oil in it.
Also, the chemist will have crystal stick deodorant, which you wet under the tap and then apply. It is ok to use during rads, but not before your treatment. I used to carry it in my gandbag and apply it afterwards. Hated the thought of no deodorant.
I had 28 sessions September/October 2012 with no bad side effects. Just keep up the cream - prevention is better.
All the best with your treatment.
Michelle