Can permanent makeup be used to cover dark elbows?

Im 20, Ive tried bio oil, cocoa butter, aquaphor, Ambi, Nadinola fade cream, Porcelana, Fair & White, vitamin e cream, lemons, lotions & exfoliation but it WILL NOT lighten. I dont go outside w/o wearing long shirts to hide it. I never wear tshirts. I went to a Derm who said to try ambi again w/ Triacinolone Acetonide but its been 2 mths & hasnt done anything. Im desperate to cover it I was hoping PM could be blended on my elbows to hide darkness. Also would Tri-luma work on dark elbows?

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