The freckles came up all at once, all tangled up.

After spending a long time outdoors during my summer vacation, broad dark spots and small melasma appeared all at once on my cheekbones, all tangled together. Even though the lighter melasma can be roughly covered with foundation, the round, dark dark spots stick out through the foundation, and it feels like people's eyes keep being drawn to them. I read warnings that dark spots and melasma require different laser wavelengths for treatment, and that shooting lasers indiscriminately can cause the melasma to flare up, so I've been spending days just researching. I heard that dark spots should be treated with a laser that forms a scab and then falls off cleanly, while melasma should be removed gently using low-power lasers. How long does the downtime last for the red marks to remain after the scab falls off, and could you please share some criteria for choosing a clinic for combined treatment of dark spots and melasma?