What Can be Done for the Scars on my Legs? (photo)

I moved into a new flat in Sydney, Australia and started getting scars on my legs. It's now been over a year and the marks aren't really getting any better. My skin has never taken so long to heal before, and the marks only seem to be a problem between my knees and ankles, and mostly on the front of the leg, not the back. I used Savlon while the scars were still healing, to little effect, and afterwards have gone through Bio Oil and Rose Hip Oil, neither have done anything.

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