question: Hi! I have a friend who was diagnosed with psoriasis. There is a red rash covering his whole body in patches. The rash is round, red, and has very thick raised scaly areas that are more cream to yellow in color. He says these areas itch, and feels like pins pricking his skin. His doctor prescribed him topical medicine that has not improved the areas at all. These areas also include the palms of his hands and soles of both feet. Onset was very sudden. He does have a hx of blue dye allergies, but this looks different.