Will laser scar removal lead to successful disappearance of facial scar? (photo)

When I was 5, I was (accidentally) scratched on the face by my sister. I am 23 now, and the scar is still here (it wouldn’t be if it wasn’t a ‘scar’). TBF, it is a mild one, and even when I was scratched there was no ‘blood’ or anything, in fact I am under no doubt that if was scratched in the same place now, with the same velocity, it would not leave a permanent mark, but a 5 year old’s skin is much less robust. In short, how effective would laser surgery be in my case?