Please recommend a treatment for the patchy freckles and blemishes on my cheekbones!

I thought I was applying sunscreen quite meticulously, but recently, when I look in the mirror, I notice that the light pigmentation around both my cheekbones and on my cheeks has become noticeably darker and spread more widely. When I go barefaced, my entire face looks dull and patchy, which makes me feel depressed because it lowers my self-esteem and makes me look much older. Even when I try to cover it up thickly with concealer, it doesn't hide it completely; instead, it just makes my makeup look heavy and cakey. I suspect this is due to sun exposure during the summer, so I am posting on the Maypure community to ask for recommendations for dermatological lasers or skin booster treatments that are most effective for resolving pigmentation concerns. I know treatments like Pico Toning are commonly used, but I would appreciate your advice on whether this would be effective for deep-rooted melasma like mine, and how many sessions I would need to get a clear, even skin tone.