What Can Be Done to Hide White and Brownish Scar?

Hi, I am a black skinned lady with old scars of over 20 years. They have a kind of white and brownish color. Please, which treatment can I use to at least camouflage the scars since they cannot go completely?

I have tried using some natural scar treatment solution but to no good. Maybe, you could recommend me other treatments that are more effective. I prefer something less expensive that I can afford, please.

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