Hi Skeeter,
I finished rads in May and my dr told me not to use the cream 2 hours before tx. I could use it any other time just not within the 2 hours right before tx.
My biopsy didn't have clear margins so we went back in and did a partial mast. and got clear margins with that. But keep in mind since they know about the margins they will dose accordingly with the rads. And they will most likely give booster tx's at the end of the series. that concentrates the rad. to the area the tumor was in. Worrying is one of those things that will haunt us for a very long time. But try to keep positive while going through tx. it is very beneficial to the body and soul.
Hugs,