Quest Vitamins LTD,
A disorder of the Skin, psoriasis is occasionally acute but usually chronic and recurrent. The characteristic lesion is a scaly red or "mother-of-pearl" patch, appearing anywhere on the body. Psoriasis may occur singly or in numerous patches that cover most of the Skin (scalp, arms, legs and back).
Fatty foods and slow elimination have been implicated as a possible cause. Treatment is directed to the symptoms and may include the application of ointments, exposure to sunlight and ultraviolet light, and x-ray therapy.
1. Ziboh V. Implications of dietary oils and polyunsaturated fatty acids in the management of cutaneous disorders. Arch Dermatol 1989; 125(2):241-5.