The short answer: many therapies can reduce acne scars, but no therapy can get rid of acne scars entirely, so you should talk to a dermatologist about the best option for you.
The long answer: Preventing acne scars in the first place is the best approach, but there are many methods for removing scars of different types. There are different kinds of acne scars: atrophic scars (indentations in the skin caused by destruction and loss of collagen), and hypertrophic scars and keloids (firm, raised lump; less common; caused by collagen gain). There may also be a reddish hue associated with either type of acne scar. The first step in treating acne scars is to treat the redness. The best treatment to decrease redness is pulsed-dye laser therapy, which targets oxyhemoglobin (a compound from blood) within the skin and can reduce redness by about 60%. Other steps in treating acne scars include the CROSS technique (chemical reconstruction of skin scars, using a trichloroacetic acid peel), subcision (a surgical technique), and punch excision and punch elevation (another surgical technique). Collagen remodeling procedures are also available, which include ablative laser resurfacing, a method that ablates parts of the skin very precisely. Other miscellaneous acne scar treatments: chemical peels, dermabrasion, skin needling, injectable soft tissue fillers, and silicone gel sheeting. NOTE: Do not try any of the medical procedures at home. Talk to an experienced dermatologist. The best way for you to reduce the appearance of your acne scars will be to meet with a dermatologist who can give you a physical exam, treat any ongoing acne flare-ups, and provide you with personalized, practical options for reducing your existing acne scarring. Reference: "Management of Acne Scars" from the UpToDate encyclopedia; article written by Nazanin Saedi MD and Nathan Uebelhoer MD.