I had painful serums on both sides after lumpectomy. One went away after a few weeks from draining. The other took 2 months of packing at the Dr's office every day and put of my radiation . After radiation I had burns and the hospital had me use Covidien Xeroform Petrolatum which was expensive but worked wonders. Around 3 months afterwards I got Lymphodema which was very painful since many of lymph nodes were removed.. I went to OT for a month and now wear compression bra, do stretch exercises every morning, and massage 2ce a day. If you had any lymph nodes removed, do keep an eye out for lymphodema. Good luck.