After jaw and neck lipo 32 hours ago, the neck strap I was given for compression has left an indentation on my neck (Photo)

It faded yesterday upon waking & doesn't occur during the day, just at night. I am sleeping on my back propped up by three pillows. I am worried the indentation will be permanent mark. Should I stop wearing it at night, I've been told this is when I really should wear it, It's Saturday morning and I cannot contact my Dr for advice. Thank You.