You're on the same schedule and TX as my guy and he has a bit of a "tan" from the IMRT all the way around his neck. The doc are all over the map about how much it will fade, though most seems to agree it shifts over the first two years or so into what ever is going to be permenant. He uses a light lotion with sunscreen every day on it and we make very sure to use lots of sunscreen and cover-up when we go out. The skin is still sensative so we're careful to pick gentle stuff to put on it. He get burned there VERY easily.