I just had a nose job and my nose is very red and starting to turn purple. What can help a red/purple nose?

This generally would not be considered normal.  It would be best to contact your surgeon now and ask to be seen. 

This can occur especially in cold weather. You should contact your surgeon immediately and send photos to ensure that something more serious is not going on. You should also avoid any smoking and prlonged exposure to the cold Colorado weather. I hope this information is helpful for you.Stephen Weber MD, FACSDenver Facial Plastic Surgeon

Dear Popcorn123456789,While this might just be bruising is it best that you speak with and see your surgeon. They are a better resource for you this close to surgery.

Thank you for your question but I would be seen by my surgeon to evaluate in person what is going onDr Corbin

Some degree of discoloration is normal after rhinoplasty from bruising. Also the swelling can cause the blood to back up causing venous congestion.  Infection does happen but fortunately is uncommon. An exam by your surgeon can help differentiate these possibilities so I suggest contacting him/her. In the meantime ice can help especially if the surgery was just a few days ago.  Warm compresses are useful if it's been about a week or more.  Arnica may hasten clearance of the bruising. Best wishes.