Since eicosanoids have been implicated in the pathogenesis of psoriasis, less potent eicosanoid mediators derived from fish oil might improve psoriasis. Using a double-blind, randomized, parallel design, 18 patients with stable, plaque psoriasis received capsules of either fish oil or identical-appearing placebo olive oil for 15 weeks, with

The Chinese medicinal, Radix Angelicae Dahuricae (Bai Zhi), is commonly used for the treatment of psoriasis. I commonly add this herb to a herbal formula when a patient complains of a strong itch.