What can I do about these scars?

In two days, I fell off my bike and got scratched by some rose bushes.





It wasn't such a big deal and everything has healed.


Except you can still see the left over scars, its like a dark patch on my leg. What creams or lotions can I use?


Thanks :]What can I do about these scars?
Olive oil mixed with holy water...





It's reputed to cure ANYTHING.......What can I do about these scars?
Girls I know use Bio-oil.