How would you know your nose is infected after rhinoplasty?

Thanks for your question- 
Grafts made from your own cartilage rarely get infected. Use of other materials carry a higher risk of graft infection. The first sign of graft infection is increased pain. Swelling, redness, fever, chills, and extrusion can follow. Puss can also be seen often times during an infection. 
If you're thinking that you have an infection, return to your surgeon for an evaluation. 
Hope this helps and God Bless, 
Dr. Robb

Nasal graft infection is associated with swelling, oozing, and redness. It will be very evident and will follow with graft extrusion.

  Signs and symptoms of infection after rhinoplasty  include significant swelling, redness, pain, fevers, chills, and possible drainage from the wounds.    Any of these signs could be serious and should be evaluated by neurosurgeon immediately.  If not your result could be significantly affected.  Good luck. Donald R Nunn, M.D. Atlanta plastic surgeon