Herbal teas often contain ginseng, and other ingredients that are blood thinners, or impair the clotting mechanism of blood. I would avoid these, and most supplements for 10 days before surgery.
Thanks for your question. Every plastic surgeon has his/her own postoperative protocol, I usually remove my own sutures and nasal splints. I recommend discussing this directly with your plastic surgeon since direct constructive feedback is always important for a physician...
Matt Erdmann, MBChB, FRCS(Eng), FRCS (Plast) says:
It isn't usually recommended to have any procedure just before major cosmetic surgery to your nose, as the risk of introducing infection is much higher. The tattooing may introduce infection (similar to avoiding dental fillings or having an infected toenail where surgery would be cancelled) . It...