Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain scars are left when the there is any injury to the facial skin that deep and aggressive.. Scars are of different types like Boxcar scars, waterpik scars, rolling border type and the treatment is not completely done with topical medications and you might need certain chair side techniques depending upon type of scars like Microdermabrasion, microneedling,excision with elevation, dermal rollers, Fractional CO2 lazers etc depending upon the scar type.. You can start applying silicone gel over the scars.. On the other hand hyperpigmentation can be treated with a combination of depigmentation creams and certain professional techniques.. You can start washing your face with Salicylic acid and glycolic acid containing facewash.. You can apply creams containing Kojic acid, glycolic acid and arbutin.. Vitamin E and C containing creams can help.. Creams that are rich in licorice extract and grapeseed extract can be helpful.. Always apply a sunscreen lotion to reduce photosensitivity effect.. You should exfoliate your skin twice a week with a gentle face scrub.. Treatments like chemical peeling, Photofacial, Microdermabrasion, dermal rollers etc can be helpful.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.