I had my second treatment today and it was short. I do notice my arms get a little sore from having them over my head but still not bad. I'm concern about the fatigue. I have been reading up and watching some of the Mayo videos on fatigue and those have been very helpful. I'm concerned about how my skin will react as I go along with the radiation treatments. I have very sensitive skin and very prone to sunburn. I was told before I even started radiation to start using some non scented moisturizing lotion on the area to be treated. I started that about week before my first treatment and put it on after my treatment yesterday and today. I was told to use Eucerin.