Rhinoplasty small yellow pus spot
The nasal skin will undergo many changes immediately after undergoing a rhinoplasty, and I would avoid putting any antiseptic cream on your nose so soon after your surgery. It is unlikely that it is an infection, and they generally do not occur until 5-7 days after surgery. I strongly recommend that you follow up with your surgeon for him/her to evaluate what the spot is.
Dr. Gary Breslow has 12 Nose job before & afters: