How Long Will Swelling Last from Maxillofacial Surgery (Upper & Lower Jaw)?

I had maxillofacial surgery for a severe underbite, and had my upper jaw moved forward (3-4mm) and lower jaw backward (3-4mm). Surgery was three weeks ago and I've healed without complications. However, I'm worried about my new complexion and can't tell if I'm still swollen or if my face is fatter since my upper jaw moved forward so much. I can barely see my cheekbones now and it doesn't seem to be improving. Is it common for there to be swelling in my cheeks (around nose) for months after surgery? Or am I stuck with this new look?

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