a few months. (1 -3 months) depending on the type of scar.
First of all,it all depends on the scar.If it is a new scar,it would take 1 to 2 months to heal completely.If it is an old scar,it will take 2 to 4 months to heal.However,since yours is an acne scar,it will be easier for it to fade provided you always apply Vitamin E on your scar twice daily.However,you could always take Vitamin E supplements since it will promote faster healing internally.Plus,using a ****** scrub once a week could fade scars easier since it will exfoliate your dead skin cells.Hope I helped(:
P/s:You could also try Mederma if you want since it works for acne scar.Plus,it is the most effective scar treatment product you could get at a local pharmacy.Good luck!!