Psoriasis is a disorder of elimination. We have the bowels, bladder, lungs, and skin with which we eliminate toxins. If three out of four are not doing their job the fourth is getting overloaded.
These problems can be rapidly overcome with an anti candida diet and an avoidance of allergens ( Dairy, peanuts, eggs, foodcolouring, and a heap of other foods(?) the FDA allows in our daily food regime) Watch shampoo's and soaps for dangerous chemicals, and avoid like the plague chlorinated water. It has been implicated in the aetiology of skin and other forms of cancer.