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GirlinKY 04-29-2016 01:47 PM

Mysterious straight line rash
Hi everyone. I have a rash on my arm. It's horizontal, about 3 inches long, and the width of a pencil. It doesn't itch and it doesn't look like blisters. It almost looks like I had on a too-tight sleeve and just took it off. It's been there for two days. Any ideas?

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