Dermabrasion or CO2 Laser for alarplasty scar?

Hi, I had alarplasty done around a year ago and was left with a scar on the left side of my face. I tried wound reclosure but that almost led to a bigger scar. I have had two co2 treatments and have noticed some improvements. My doctor says I can achieve much better results through dermabrasion. I was wondering if any of you could give a second opinion. There seems to be really mixed reviews on nearly every scar treatment available. I have fair skin so pigmentation would not be an issue