I have this skin disease too. Have you gone to your doctor? he should prescribe soemthing, but what I have is Hydrous Emulsifing, you would know it by the yellow/oragnge color, and the funny smell! But I use this and it helps a lot. Of course I think that my body is becoming amune to it, so I may not be able to use it any more,,, but I think you should take himm to your doctor to prescribe something. and try the other places in here titled psoriasis (or however it is spelled) there is good info in there too...
Hope I helped!