what part of the body? There are several different products to use, for instance, I use a loofa for my body and a pumic stone for my feet and ocassionally soak in a bath with vaseline bath beads that have milk protein to hydrate your skin and leave it soft so there isn't risk for dry or dead skin. I've read for your face a wash cloth does just fine with whatever cleanser you use.
I use loofa sponges for my body and I use a pumice stone for my feet and exfoliating products to get rid of dry skin but now is it dry skin or is it psoriasis? If it's psoriasis you need medical advice! There are numerous prescribed meds that help psoriasis so make sure you know the difference!!!!! Hope this helps! Oh and after bathing I use moisture lotions on my body to help the dryness stay away!!!!! Let me know if this is helpful!