I have just started my third week of radiation after finishing 4 chemo treatments of A/C on Jan 5. Over the weekend I noticed small bumps (hives) similar to a rash developing on the chest wall. The breast is not red, dry, itching or tender and the bumps are not all over the breast but in a localized area. The bumps are not red but do itch. I've read that radiation can cause a rash but I guess I assumed that it would be more like a red rash, not raised bumps, and would cover more of the breast than just a small area. Has anyone else had anything similar and any suggestions on what to do? I continue to put lotions on the breast as radiologist suggest to keep it moist but wonder now if that could just be contributing to the problem. Any ideas or suggestions?