Melasma is a tough skin condition to treat. It’s a chronic condition that requires low level treatments with relative consistency and daily skin protection. Halo can be safely used to treat melasma however halo has many different setting options to choose from in how to approach skin treatment. Your treating physician should be experienced in the use of this laser to enable them to set up the laser to adequately and safely treat you. I always have my patients on a skin lightening cream as well. You will need to maintain strict sun avoidance afterwards or else your melasma will certainly return and potentially be worse.