The Dialysis Itch From Hell...My son has been on dialysis for 6 months now. 3 months ago he developed a horrible itch that sends him crazy and prevents him from sleeping at nights.His potassium and phosphate levels are sound, a visit to the dermatologist was to no avail, no suggestions of lotions and potions from this quarter helped . We have tried neem oil, chickweed lotion, rescue remedy, surely someone must have found something that helps. The renal technicians have double flushed the machine before use, used preservative free heparin..no change. Does anybody know what else he can try?