Hello, I hope you find the website useful, it definitely is the place to ask questions - hopefully you get the answers.
I've had brachy so I can tell you my experience of it , however the treatments differ due to the dose rate, high or low, therefore I hope some of the ladies who have had a different experience to me, will come on here and tell you how it was for them.
My treatment lasted no more than half an hour and was no more invasive nor painful than inserting a tampax. I'm sorry oif that's too much info for you being a man I mean however you will also find on this website that we ladies tend to be frank & openly descriptive, your girlfriend will understand!
Treatment involves having radioactive rods (again very slim, pencil-like) inserted into the vagina. These are attached to the machine which delivers the shot of radiotherapy. They position them inside you then x-ray the area to ensure they are in the correct position. Once that's achieved, they leaave the room and deliver the 'shot'. You don't feel it happening - you just have to try & lie still whilst it's going on. In my case I think it was about 10 - 15 mins. Then they remove the rods - that's it. I didn't have to stay away from people, I wasn't radioactive or anything and I felt perfectly fine afterwards. However - as I say - there are different doses of radiotherapy and the length of time the rods stay in place varies.
As I say, hopefully other ladies with different experiences will also share their experience with you. If your girlfriend has the experience I had then she should be fine with it. The trauma of your situation takes more out of you I find.
Hope your girlfriend gets on ok, God Bless you both - and the litle girls.