Will Cosmelan solve these stubborn dark spots? (photos)

I'm in my mid-40s, Asian, and looking for treatment for dark spots/sunspots on my face. At the recommendation of my dermatologist, I got Picoway and Clear and Brilliant lasers a month and a half ago. After about 2 weeks, the results were spectacular--all brown spots were completely gone. However, after about a month, the 3 major brown spots came back and are just as bad as they were before. Would Cosmelan be a better solution for my Asian skin? I do not have melasma--just isolated brown spots.