well, I'm naturally a worryier so I wouln't say it's a dyeoff symtom or anything. I just have many ups and downs. When I feel symtom free, I'm the happiest person ever, thinking I have my life back again. Then when that itch comes, I panick thinking all the bad thoughts. My mind can really take off. Hoping and praying most all is dead, and like RG says, toxins cause itch. Probably lingers for a while,? don't know.