1. Lemon: Lemon contains citric acid which will help kill the bacteria around the acne scar. It may not remove the bump from an acne scar but it will definitely correct the skin color around your acne scar.
2. Garlic: Garlic is known for containing antibiotic compounds. Raw garlic applied to your acne scar may not be pleasant at first because of the smell but it will help your skin rebuild itself.
3. Orange peel: Orange peel, similar to lemon juice, will help clear your pores with its acidic properties to help keep new acne away while gently bleaching discoloration from the acne scar.
4. Cumin seeds: Ground some cumin seeds, make into a paste with some vinegar and apply to your acne scar.
5. Nutmeg: Nutmeg is usually recommended to be applied with regular milk and honey. Similar to garlic, nutmeg has anti-inflammatory properties but it only smells a lot better. Make into a paste and apply. Rinse after 30 minutes.