Please recommend a treatment with 확실 (certain) effectiveness for melasma that darkens during the summer!

Even though I diligently apply sunscreen every morning before going to work, the UV rays are so strong that I’ve developed huge patches of hyperpigmentation on both of my cheeks... ㅠㅠ Every time I look in the mirror without makeup, I look older and my complexion looks uneven, so I feel like I urgently need to get treatment for melasma. There are so many different types of lasers and injections at dermatology clinics that I’m really struggling to decide which treatments I should combine to see noticeable results. I’ve heard that since it is a deep-rooted pigmentation disorder, you need to schedule at least 10 sessions to see proper effects; is that really true? I’m looking forward to hearing firsthand advice from those who have consistently received pigment lasers or toning at Maypure and restored their skin tone to a transparent, clear complexion like a peeled egg!