Oh goodness, I just wrote a lengthy reply, but I don't see it. Anyhow, so 'pruritis' is just a fancy word for itching!

I meant to come back and edit my answer and say that I have tried all kind of antibiotics, internal and topical, including Bactroban, which is used to kill MRSA in the nostrils. It didn't any good on my nipple either. Very odd. I've been so desperate I even tried yeast infection cream, alcohol, witch hazel, that pink liquid stuff for itching, forgot the name of it.... I've tried just about everything I could think of, but no relief. Very odd, right? My arachnoid cyst is from T3-T8, but my suspicion is that the itching is from my cervical compression of my spine--- does that sound like a possibility?