When Can I Stop Worrying About Something Going Wrong After my Rhinoplasty?

You should exercise reasonable precaution against excessive trauma. For example, avoid contact sports; however, the bone should be healed at 2 months.

By two months after Rhinoplasty the bones should be stable but the surrounding tissues still have some swelling that will resolve over the next 10-12 months or so.  In other words, enjoy life the result may only get better with time...

Nasal bones and nasal cartilage are healed and stable by six weeks following rhinoplasty.  At two months you do not need to worry about damaging your result.  Though there may still be some swelling and some improvement in the appearance of your nose over the  next 6-12 months, the bones are well-healed by now.  You should discuss your concerns with your surgeon. 

Nasal bones are healed 3-4 weeks following rhinoplasty. You can resume your normal physical activities at this point with the caveat that the nasal bones are prominent and delicate meaning that you have the same risk you did before of sustaining a nasal fracture if your nose is traumatized. No less and no greater than before surgery so feel free to get back out there and enjoy life.Stephen Weber MD, FACS

At 2 months the bones should be stable and you shouldn't have to worry about doing any damage to them.