Whats the most effective home remedy for facial scars?

i have a lot o for scars on my whole face due to pimples....i want to remove them...but how? exfoliant?|||My friend put his face through a car windshield,after he decided he was gonna have 18 beers and take a nap while he was driving 50mph his doctors gave him so many creams and lotions,but he said what worked best for him was vitamin E- the ones that are oil in a capsule just pop a pin sized hole in one and put on your skin-and if its really bugging you and you have a few hundred extra bucks get an (face-peel)|||i heard lemons are great. Just squeeze the juice out and apply it after washing your face. Drinking lots of water helps too.