How do I get rid of acne pigmentation?

In the past, my skin seemed to recover quickly, but now, once I get a breakout, the spot remains.

Especially the ones left on the ball side Acne pigmentation This isn't covered well with makeup, so I don't know how much concealer I have to apply every time I go out.

Even when I meet my friends, I keep lowering my head because it seems like they only see my skin.

I waited for it to get better naturally Acne pigmentation I'm getting really anxious because the traces of it don't seem to be disappearing at all.

I've been applying a lot of vitamin serums and regenerative creams that are said to be good, but I haven't noticed much of a change yet. Is there anyone among you who has? Acne pigmentation Do you have any special routines or products you'd recommend that you've found effective? I'd really appreciate any valuable feedback, even if it's just a small tip.