It may be because of its funny sounding name, I mean how do you pronounce it Saw-Eye-Assis? almost right just put more emphasis on the "A" and try Sore-Eye-Ah-siss and you just about have it!!
But it is seriously a very tormenting condition that seems never ending when you have it, the cause of Psoriasis is not fully understood and there are a variety of conventional treatments used to ease the discomfort and they include vitamin D creams, steroid creams and coal tar and even Ultra Violet light.Psoriasis may benefit from a gluten free diet and/or a vegetarian diet plus reducing fat intake over the long term, fat from red meats, eggs and all dairy products must be cut out. whilst fresh fruits and vegetables should be increased to at least "5 a day" portions
Taking note on whether or not you live in a hard water area or soft water area that could be very important, as with Eczema sufferers hard water scale (and scum) can greatly aggravate psoriasis, think back to holiday, did the condition improve during the week or two that you were away? was it a soft water area that you visited? it's all worth investigating, because we do know from lots of anecdotal evidence that hard water scale, chalk, lime scale, calcium or whatever you may know it has, can seriously aggravate an already very sensitive condition.
One things for sure no one has an answer or a cure so, all things, all methods should be tried, there are plenty of creams, medications, alternative and herbal remedies available but none of them are a cure. an holistic approach must be used (and stuck to) for a minimum of three months, although we do know of cases where just changing to softened water and (very important) has shown almost miraculous results in just a few days, but even so keeping away from Chlorine as much as possible and keeping away from swimming pools where Chlorine is used is of utmost importance.