Thanks for the query.This is limited information to make precise recommendations. The best option is to consult a Dermatologist to understand the condition. A thorough evaluation if necessary should be done. Hope it helps you. This is renal pruritus from the description and needs specific management. A drug called Nalfurafine (difficult to get in India) is sometimes used or charcoal powder. Lots of moisturizers is advisable to apply on the skin. Periodic dialysis also helps.