What treatments are most recommended for melasma and blemishes?

These days, many people are getting treatments for freckles and blemishes.
I'm also gradually becoming interested in treatments for freckles and blemishes.
If I just leave it alone, it feels like it is spreading little by little.
It was faint before and the range wasn't wide.
It feels like the range is gradually expanding and the color is getting darker.
Besides, there are so many different skin care procedures available that I don't know which ones are good or suitable.
I am curious to know what it is like for those who have received treatments for melasma and blemishes.
I thought it would be better if you included things like the name of the recommended procedure, price, duration, or effects.