I have been meaning to write a post for a while now, I finished my radiotherapy over a year ago and I would like to share a product which I feel helped me a lot.  
The oil is from the Oil Hut based in Devon, it is a After Sun Body Oil made from lavender, chamomile, Geranium and Bergamot.  It's healing ability helped moisture, calm and sooth the effected area.  I put this on after each radiotherapy session and then applied again before bed.  
A year later I can honestly say I have no signs of scaring, redness and skin damage. I am certain this is all thanks to this amazing oil. 
If anyone is wondering about different creams to help your skin, I would definitely recommend this product. 
Hope your treatment goes well.