Use sunscreen daily with SPF 30 or higher
Apply a topical retinoid at night
Use vitamin C serum
Try niacinamide
Use azelaic acid
Use alpha hydroxy acids like glycolic acid or lactic acid
Use salicylic acid if acne is still active
Apply hydroquinone only if recommended by a dermatologist
Avoid picking, squeezing, or scratching spots
Keep skin moisturized
Use gentle cleanser and avoid harsh scrubs
Consider chemical peels from a professional
Consider laser or light treatments from a dermatologist
Be consistent for several weeks to months
See a dermatologist if marks are severe or persistent