Yep, that's what I have, a rash! I went in their office this morning then the oncology nurse took a look at my rash, started pushing buttons on her computer telling she was prescribing me some medicine and that it should clear out soon. So I asked her what it was, to which she answered "Oh I don't know, you'd have to see a dermatologist for that!" Isn't wonderful to go the the doctor and to be given pills, and strong ones that is (steroids!) for something that they don't know what it is! She gave me an anti-itch pill and the steroid to clear the rash. If it doesn't clear, then I should see a dermatologist.
The moral of the story is, if I get a rash with my next round, I'll go straight to the dermatologist ;)