What a bummer.. I was told yesterday my last day of treatment is on July 26 instead of July 19. The last week of my treatments are called radiation booster. How it's been explained to me is that the boosts are aimed at the "tumor bed" from where the cancer was removed. But hopefully the boosts will be less impactful on the skin than the full-breast treatments were. 20 treatments done 10 more to go!! 😒