Can you please list the most common homemade remedies to get rid of acne and acne scars?

Acetic acid: One can cleanse your skin with an Acetic Acid solution because it is specially toxic to bacteria, and will help to exfoliate the skin.

None really: There is no good scientifically proven " home remedies". Pink scars need sun block but it the scar are really bothersome then you will need to see a plastic surgeon. Multiple treatment options are avialible. There is no such thing as one treatment works for all scars, multiple modalities maybe needed.