Smoking marijuana before rhinoplasty surgery?

Thank you for your question. It's best to avoid smoking for at least two weeks prior to rhinoplasty. This applies not only to smoking tobacco, but also to marijuana. Also make sure to avoid smoking for at least two weeks after surgery as it may interfere with your healing process. I'd recommend to check with your plastic surgeon as he or she may have different guidelines for smoking. 
An in-person exam with a board certified plastic surgeon is always the best way to fully assess your needs and address your concerns. Best of luck!

GlazedDonut,
Thanks for your question.  I think that there should not be any issue with your surgery based on your reported usage of marijuana and tobacco.  From an anesthesia standpoint, smoking either of the drugs can lead the patient to cough more on reversal of anesthesia, though from a surgical standpoint, most of the recommendations are based on the tobacco.  Tobacco is a vasoconstrictor, which means it constricts blood vessels.  You want (and need) optimal blood flow to areas where you have surgery, as cutting tissue interrupts blood supply and blood drainage.  Having chronic vasoconstriction (continued tobacco use) when you are healing can lead to the tissues being starved of oxygen, leading to larger scars.  That said, the use you describe should not interfere with your surgery or healing, and your scarring should be optimal with good surgical technique and avoidance of tobacco (or rather, nicotine-containing) products.  Good luck!