Well I wanted to give an update on my itchy forearm, since I see a few more recent responses to this thread.

It basically cleared up completely around the 2nd week of December, and hasn't bothered me since then. Weird, I know. But this seems to be on par with many of the other stories I've read on brachioradial pruritis (itching of the forearm). Lots of other folks describe their symptoms as starting in late September and dissipating by early December...which is exactly how mine went. I've also read that it is a "seasonal" condition, so it may return next year at the same time. So, armed with that information, I will surely be more conscious about using sunblock (the condition is said to be brought on by excessive sun exposure) when I'm outdoors on the bike or at the pool.

For now, I have no itching forearm...and for that I am truly grateful, as I have an extremely low tolerance for itching of any kind. I actually would welcome PAIN over itching, ANY DAY!