I'm sure you're doing the right thing going for resurfacing. I was in exactly the same postion, with infection after cortisone injection.
I was advised to have thr which was the only option available locally. Surgeon very good, but my logic for going elsewhere for resurfacing is that, if one was unluckky enought to get an infection, it's much easier to revise to a thr. Revising an infected thr is a different ball game altogether.
I'm sure your surgeon will have antibiotic cover organised but I had peroperative teicoplanin which was continued intravenously for 5 days, then flucloxacillin orally for 4 weeks. Also, important to have biopsies sent from tissue obtained at operation for microscopy and culture to check for any residual infection. That's what I had and to my mind it was perfect and so far so good.
I soldiered on in extreme pain, post cortisone, for about 8 months and, as a result, I think my healing has been a bit on the slow side. Providing your infection seems to have settled, the sooner you can get it done, the better - although opinion may be divided on how quickly that should be.
Don't want to throw a spanner in the works, but because of my infection, I opted to go to a very experienced surgeon. Just maybe you're not the ideal candidate for someone who hasn't done a great many resurfacings.
Very best of luck. Keep us informed as to your progress. Do you have a date yet?
Andy BC