My husband aged 62 is a copd with dilated cardiac mypathy patient .for few days he is thing very badly main on the buttocks ,back side below neck and downward from knees .there happens to be red patches which ha subsided by applying calamine lotion and seems it has dried but itches a lot which he is feeling very discomfort he is taking many medicine s prescribed by cardiologist what lotion can I apply to him as I am unable to take him to a doctor presently thanks in advance.