Creams to fade scars

Hi Everyone, Happy New Year!!!

Just wondering if anyone knew of any GOOD creams that actually work to get rid of scars. I've got chicken pox scars on my back and desperately want them to fade. I've tried Cocoa butter which was recommennded by a friend but it hasn't really worked.
Can anyone recommend anything? (Not too expensive - Im willing to spend up to £20-£30)

Thanks xxx

Creams to hide scars

Have you considered Bio Oil - its supposed to be very good, it costs approximately £15 - £20 from Boots.