I am two days away from finishing my 33 treatments, with six of those "boosts". Unfortunately, I had to take last week off because my skin was too burned, according to my radiation oncologist. In fact, she started the boost early since it is a concentrated dose on the tumor site, and would allow my outter chest to heal some. But, with three boosts done, ALL of me was now too red. She said it "should be" OK to have the week off, and then finish this week. What bothers me is the "should" part. I know she stressed at the beginning of this whole experience that it was important to complete the series without break if at all possible. When I did have to have the time off, she said, get this, "If IT comes back, then we would just have to do a mastectomy". Now, that did not make me feel too good...go through all this and THEN have a mastectomy. So I guess my advice to you, based on my experience, would be to complete the series without break if at all possible. You said the "rad tech" said it would be OK...but did your oncologist say OK?
Take care, Jean In WA