Swelling on right side. I think its a hematoma. Will it go down? (photo)

The night I was released, I caught my right side drain on a doorknob. The next day, I was admitted back in the hospital and had to receive 2 blood transfusions. Not less than a week after, the doc removed right side drain. Three weeks later, he removed the left. Now, my right side is still swollen. He said it's far, but I think hematoma. Will it go down? Should I continue with a binder? It's not painful. Just looks like nothing had been done