Fading acne marks and scars as quickly as possible?

I have lots of acne marks (I don't technically think they are scars, just more like discolouration) and I want to fade them as quickly as possible as I am going on Holiday in July :D I'm using bio-oil on them two to three times a day and sometimes I put it in the bath :D and I'm also using Palmer's cocoa er twice a day as a moisturiser. How long do you reckon it will take to see a difference and does anyone else have any recommendations to add to my routine?