How To Treat Inflammation In Chest Cartilage Post Surgery For Breast Cancer?

My right breast has been swelling slowly the last week, my chest cartilage on that side feels inflamed.I had surgery for breast cancer last august (non-invasive everything is fine). I had my checkup with the radiologist 2 weeks ago and all was well.Is this a normal thing or the result of being bumped or something? I do have trouble with the cartilage in my chest becoming inflamed easily.The swelling is new.