Apparently aloe vera straight from the plant works miracles. I have a friend who used it on a scar from an operation and it healed in no time and the scar is barely visable now. I know you said that you are using aloe vera - but if it in the cream form - I would give the plant a try. Just break off a leaf and squeeze the gel out from the inside.
Biooil or you can get special plasters that will remove any scarring