Maybe this is a bit out there but I've always been a fan of natural remedies. I'm not sure how useful this will be but figured it was worth posting.

http://www.stuff.co.nz/life-style/beauty/2613649/Body-tool-combats-scar-tissue

It's a news story from an NZ website. The first few paras read:

'Hamilton physiotherapist John Appel has a large scar on his elbow he got as a teenager in a motocross accident in his native United States.

But since the 35-year-old began using a new treatment, invented by an Auckland deep tissue massage therapist, the scar has slowly begun to soften and lighten.

Mr Appel, who has a Masters Degree in Physical Therapy, has been using the technique on a range of clients who have either external or internal scar tissue and the results have been dramatic.'