Bump on the nose bridge after revision rhinoplasty with cartilage graft (Photo)

I've undergone a revision rhinoplasty 1 year and 2 months ago, and the doctor used graft from my rib on my nose bridge. My nose was straight after the surgery, but then I noticed a bump on the nose bridge, right where the graft is, that didn't subside with time. The doctor advised me to massage the nose on daily basis, which I did, but the bump is still there, and my nose looks worse than before surgery. Could I use steroids injections to soften the bump?