I'm worried about my dark spots.

Since I work outside, my face gets quite tanned.

Moreover, even when I apply sunscreen, I work in a small space with a lot of sweat, so I can't reapply it. As a result, my face seems to show some signs of dark spots and age spots.

These days, it seems like there are quite a lot of different types of lasers.

What kind of treatment should I undergo for melasma?

And the most important question is about the cost. How many sessions are needed to see results?