Vitamin E does not help reduce scars. Many studies have been done on topical vitamin E, that showed no improvement in the appearance of scar, and in many, the vitamin e made ascars WORSE than untreated due to irritation and/or contact dermatitis. There are a few clinically proven scar reduction methods. Many involve lasers or iunjection. One clinicaly proven treatment that is available OTC is ScarAway. It is available as a patch or strip and safely reduces scars. For facial scars like acne, use ScarAway Serum. Very effective, although the patches (often referred to as silicone scar sheets) are most effective so use them when feasible, and serum only when you cannot use the strip in the area. ScarAway Serum would be the best for you.
Generally good scar treatments are vitamin E, pierce a vitamin E capsule and rub the oil into the scar. Another option which works well for me is Bio Oil. Rub the bio oil into the scar 2 times a day and usually within about 3 months the scar is alot fainter in colour and less red.
But, both Vitamin E and Bio oil can only be applied when the scar does not have any areas where the wound is still open.
These both work well for me, hopefully you'll find something that helps get rid of your scar.