Cleansing face with mild face wash twice regularly to remove dirt and oil from face. Additionally, avoid foods with high glycemic index such as white rice/bread, pasta, sugar, chocolate. Use water-based sunscreen daily. Consult with a Dermatologist and use topical treatments.
Chemical peel, dermal fillers such as polymethylmethacrylate (PMMA), hyaluronic acid (HA), and poly-L-lactic acid (PLLA) and laser resurfacing, microneedling.
That depends on the depth and type of the scars. With few types of peels and derma abrasions depth of the scars can be reduced.