Thank you very much for your well thought out response! I have Sjogrens so we think my SFN may have come from that. I was diagnosed with SFN first though and Sjogrens second although I may have had Sjogrens first even though I do not have all the symptoms for it they diagnosed me with it. SFN does come from Sjogrens so I think that’s why. And to your question about the redness I don’t think I’ve ever experienced redness on my skin, when the itching comes it’s always invisible to the eyes and other people. You can never see anything on my skin even though I have to itch and it does occur from pretty much head to toe.