My Aunt is a diabetic patient, who is currently on insulin. She also has a high
creatinine level of 1.9. Recently she has started getting small pox like rashes all over her body which are extremely itchy. She has been applying Calamine lotion and taking tablet Allegra 120. (1 tablet per day) but it is not providing any relief. Please suggest medications to reduce such itching. She is having trouble sleeping at night.