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It's quite a large area! Maybe below the elbow sweats more, or comes into contact with more stuff? The flakiness is kind of cool looking.

I would definitely take a few good looks at a tattoo like yours, should I see it on someone else. It's great.

That could be it, maybe it's just the particular area is more sensitive? It reminds me of how a snake sheds. I always wear long sleeves throughout that phase. Thanks!