Hi Pink Lady
I finished my 15 sessions on Friday and my nipple has been agony over the weekend. It does seem to have eased off a bit today and the sharp pains inside seem to have calmed down. I now have a spotty/blistery area near the breast bone. I suppose it is what I would have expected if I got badly sunburned. They did say to me that the redness and soreness might get worse for a few days. I have just had a look at my discharge letter and that says 'for the first week to 10 days following radiotherapy it is usual that any skin reaction may get worse.' It also says 'you should continue to follow any advice given to you by your radiotherapy team until your side effects have settled back to normal. This is usually after 4-6 weeks.'
During treatment my nipple was more painful than the skin around it and thay said it was not unsual.
Hope this helps.