I have a "R" who is on dialysis and her feet are extremely swollen, no pitting, looks like they will split open. red and purplish in color. well last night the L foot up to mid shin was extremely red, warm to touch. actually had a red ring around shin. looked like she was wearing a red sock. she was in extreme pain and was itching her awful bad. my question is, isn't itching a symptom of a clot in people on dialysis? something about the changes in the phosphorus in the body. i called the doc, who was covering for her regular doc and he put her on augmentin 500 BID. I personally think she needs her leg checked out with a doppler, which we don't have.