How many Pico Toning sessions would be necessary for this level of melasma?

The melasma on the upper part of my cheekbone is getting darker. At first, it was so faint that I had to look closely under bright light to see it, so I didn't pay much attention to it. However, as time passed, the color started to deepen, and now it is dark enough that you can clearly tell it is melasma even from a distance. The photo came out a bit blurry, but in reality, the boundaries are a little more distinct. The color seems to have been captured quite accurately in the photo. It is somewhat covered by makeup so it is less noticeable, but if it gets any darker, I think it will be difficult to cover even with makeup, so I want to have it removed before it's too late.

I am considering Pico Toning laser treatment. How many sessions would I need for this level of melasma? I am also curious if there are any other treatments you would recommend besides Pico Toning, and if it is possible to completely eliminate melasma with laser therapy.