Description: Three million Americans today have an inflammatory skin disorder called psoriasis. The condition triggers frequent episodes of redness and itching; thick, dry, silvery scales on the skin; and nail abnormalities. If all those itchy problems weren't tough enough to handle, one in ten of these people down the road find that their joints start to stiffen and ache, as they develop psoriatic arthritis. But a recent study on a drug called Enbrel found it could give many of these people some relief.