Blood showing high inflammation

Psoriasis may not be the cause, but it may be the other way round. If you have inflammation in your blood, your blood cells may take that round the body and deposit it in your skin. Skin cells are constantly renewed and red blood cells do most of the work. It's no wonder you have and inflammaton of the skin, if you have inflammation in your blood. A nutritionist should be able to tell you that, I'm surprised your doctor can't. Treating the inflammation from the inside out should go some way toward solving both problems. I'd try an anti-inflamatory diet until you see your doctor next. They may have something I mind for you already though.