I had the sentinel node removed. Due to the fact that my margins were positive as the tumor was on the chest wall I had 33 treatments of radiation 8 of those being boost treatments. The pain is due to nerve damage as it’s even on the side that didn’t receive radiation although not as bad. The neurontin helps some but each day is different with the pain. Some days worse than others but I have learned to manage as best I can. One day at a time.