I had revision rhino 2 weeks ago; the surgeon took skin from the side of my head to rebuild my bridge. A soft bump has formed?

The skin around the area is red/purple and is very soft and tender to touch. It definitely doesnt feel like bone. I previously had a bit of a dip in my nose from a prior surgery years ago, so skin was taken from my head to build my nose up a little. The area seems to be getting bigger by the day & looks crooked when looking at my nose from different angles. Is this just swelling, and how long is it likely to be like this before it subsides?

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