If you're looking for results using packaged over-the-counter products or those you can purchase without a prescription to reduce acne scars, you'll have a lot of options to consider. First, there's using a quality flesh-toned concealer or foundation to camouflage the blemishes. Another option is any number of creams that reduce the appearance of scarring. For more permanent effects, there are mild chemical peels that contain salicylic acids or alpha hydroxy acids. Those that also have corticosteroids or antihistamines will help reduce inflammation and itching of fresh pimples [source: Cicero].
Bleaching creams contain active ingredients like hydroquinone and slow down melanin production [source: NZSDI]. Using bleaching creams over time can reduce acne scars quite a bit. Just be careful to apply fade cream only to the scar so you don't end up lightening the surrounding skin unintentionally, resulting in light spots.
You can also find microdermabrasion kits in some drug stores and mail order catalogs. They supposedly work similarly to professionally-administered microdermabrasion treatments by sloughing off layers of the skin. Proponents of these resurfacing methods claim to reduce scars and wrinkles as your body regenerates the polished off skin cells.