Swollen eyelid 5 months after MOHS surgery, is this normal?

I got mohs surgery on my right temple 5 months ago. I got a forward advancement flap reconstruction. My right eye area was very very swollen for a long time. It is still somewhat swollen above my eyebrow. My upper eyelid is still very swollen as well. Not as bad as originally, of course, but still significantly after 5 months. Is this normal? Should I expect lymph glands to drain properly a few months from now and the swelling to go down? What could be wrong at this point? Thanks.