What is Your Recommendations for Cat Scratch on Upper Lip on Toddler? Injury Occurred 3 Weeks Ago. (photo)

3 weeks ago, my toddler was scratched by a cat on the upper lip. We immediately took her to a plastic surgeon who advised against sutures because he feared it could become infected. It's been healing on its own. It's been almost 3 weeks and it's a deep red color. It is not raised. He wants us to return in 6 weeks to evaluate again and said we could do scar revision as a teen. I use Mederma and sunblock religiously. Does it appear as if it's healing as it should? Please advise.