Is laser pockmark really useful? Why did I do it once and it didn't work? Should I keep doing it?

I have several pockmarks on my left cheek, and there are red pockmarks next to the key pockmarks. I have been using good acne products, and the marks and acne pits have no effect. I want a laser. I heard the aunt next door say that she did it once when she was young, and then she didn't do it again, so I suggest that you don't need a laser if it's not particularly serious, because hospitals and beauty salons will definitely let you do it all the time unless you are rich. The effect is a little better than before. If the key is not maintained and restored, it will be more serious.