Is there a place that specializes in removing dark spots or moles?

Are there any places that are doing better these days? In the past, unprofessional methods were too widespread.

Recently, my mother had a mole removed, and I could see the scar so much that I wondered if it would leave a bad mark.

Of course, it got better after a while, but I don't know if it will become completely clean.

If you know of a place near Dongdaemun-gu, Seoul, that is good at removing freckles or moles, please let me know.

I've never seen a blackhead removal, does it hurt a lot? Do they just zap it with a laser?