Hello @Mousie
I used the moogoo udder cream and was very happy. The radiotherapy nurse I spoke to advised to use a cream that you have used pre radiotherapy to ensure no reaction, and they supply you with (free) sorbolene cream if you wish to use that. The staff keep a close eye on your skin throughout and they will advise accordingly.
I went through the public hospital system for radiotherapy and I cannot speak highly enough of the staff and my care! (I am a registered nurse).
My very best wishes to you for your treatment!