How long does the treatment for blemishes last?

Hello. I'm very interested in skin treatments, but I haven't really tried them.

My skin is acne-prone, so I tend to have a lot of blemishes.

I have fair skin, but because I have blemishes, it doesn't look clean, so I am always stressed.

Is the treatment for blemishes a laser procedure, like mole removal?

Of course, I don't think getting it done just once will be enough; it seems like I'll need to get the procedure done several times...

How many times do I need to receive it for the effect to appear?

I am also curious about how long the blemish treatment lasts.

I definitely need to take good care of things like UV protection, though.

I would like to get treatment for blemishes and have clear skin.

It's just my own wishful thinking hahaha