I'm 2.5 weeks PO open Rhinoplasty - my scar is quite red, what is the best facial scar cream?

Redness in an incision is a normal part of the early healing process.
There is mild benefit from using scar gels that contain silicone however, these
may minimally improve the redness of the incision line. A treatment with a
pulsed dye laser (595nm) can help clear the redness sooner. If you are
concerned about the appearance of the scar I recommend contacting your surgeon
so that the scar can be assessed and a treatment plan can be discussed.

Dear AshleyrebeccaFor redness in the columellar area , at around 2.5 weeks is normal as these scars can be red and in this area there is pronounced edema typically.  A bio oil is appropriate or a scar fade cream, make sure you surgeon has a look to make sure it is just normal scarring.  Good luck!