I get Psoriasis on my legs and arms in the winter. Last winter I did a very modified Gerson therapy -- just the juices and coffee enemas. I did about 6 homemade vegetable juices a day -- mostly carrot/apple juice but some green juices as well -- and 2 coffee enemas. On the Gerson therapy you do a ratio of 1 coffee enema for every 3 8-oz. juices.