Conclusion

Melasma that has resisted previous treatments, such as chemical peels or skin-lightening agents, may respond well to laser treatments. Your skin’s outer layer is penetrated by lasers, which causes cell renewal for skin that is lighter and more uniform.
Always see a dermatologist about the best course of action as certain laser treatments for melasma might actually worsen the condition by causing hyperpigmentation.
References
[1] https://www.healthline.com/health/melasma
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3461803/
[3] https://www.healthline.com/health/beauty-skin-care/hyperpigmentation-treatment
[4] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5724305/
[5] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5418955/
[6] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3560164/
[7] https://www.healthline.com/health/microdermabrasion











