So i am now approx 9 weeks post radiation. I had the eqivalent of 29 treatments. Skin under breast started to break during last few treatments. Was really awful about 2 weeks post and has been healiung well since. The past couple of weeks i have noticed a crust forming on my nipple and its sore. I thought it may have been a build up of moisturizer so i stopped for a week and the crusting has actually gotten worse. Tonight my nipple felt like sandpaper so i did use moisturizer and a whole crust came off and it’s very painful. Anyone else have this happen? Is this normal?