[Amberdawn]

A brown recluse bit a friend of mine. She was screwed up for YEARS. She not only had a large piece of flesh above her knee removed, but suffered through nausea and sweating every time she exerted herself due to the venom being taken up by her fat cells.

[The Cajun]

I didn't really have any secondary issues, but the scar will itch like hell every now and then for a minute or so.
Figure it may be nerves reconnecting or scar tissue pulling.
One thing for sure, get to a doctor right away to start on antibiotics.