If there is any concern about the skin viability, you should be examined by your surgeon. The nose can be swollen for up to a year or more. Swelling will depend upon the nature of maneuvers employed, presence of grafts or implants, thickness of skin, open vs closed etc.
Kenneth Hughes, MD
Los Angeles, CA
Web reference: http://www.hughesplasticsurgery.com/Rhinoplasty.php