Yeargh! It itches!

Gah! This thing itches like mad. I get the stitches out tomorrow, but have another 24 hours left before that happens. If I think about it, it drives me nuts. If I don't think about it, then, well, it's bearable. What is it about the healing process that makes it so annoyingly painful (itching being a low-grade, localized pain).

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