This is not normal and you should monitor your temp and see your plastic surgeon as soon as you can.
NO! This is a urgent issue that needs immediate care by the surgeon!!!!!!!!!////////////////////////////////
I would share your concerns about the area of redness and would
recommend that you communicate with your surgeon regarding your concerns.
This would be a question best asked in person to your plastic surgeon. That shade and amount of redness is not usually what I see, and it is worthwhile making a personal visit for an examination. The main worries of course are an allergic reason or possibly bleeding, both of which would need to be treated sooner rather than later. Infection 2 days after surgery is pretty unusual.