Recommendations on post-surgical issue from bacteria? (Photos)

I think you need a few different techniques.
First I'd add some cartilage or soft tissue under the skin to restore the contour. Then, I'd do some skin resurfacing techniques to blend in the scarred area. We'll get it better, but it will take a couple of visits.

hard to tell whether you have residual dormant infection or just scarring... bacteria can remain colonized on the cartilage because of its poor blood supply and antibiotic penetration... this makes matters tricky...

I would likely try to fix this in 2 stages... the first a wide debridement and cultures to both make an accurate diagnosis and help clear any residual infection.... depending upon the results of that, I would treat you appropriately before definitive grafting, etc.

good luck...