Suggest Treatment For Swollen Right Side After Broken Ribs

I suffered 8 broken ribs, front and back, and a small laceration to my liver 2 months ago. The ribs appear to be healing nicely, however still tender. The liver laceration apparently was not a big concern for the specialists and no added treatment was necessary after my relief from the hospital. I have noticed that I still have a bulge on my right side, just underneath my ribs. No pain. Could that be a result of the so many broken ribs? I'm having no stomach troubles or intestinal problems.