alefacept, efalizumab, etanercept, and infliximab). In a recent Japanese Society for Psoriasis Research analysis of 28,628 cases, herbal medicines (14.5%) ranked highest among systemic therapies used.

Psoriasis vulgaris is a common skin disorder characterised by focal formation of inflamed, raised plaques that constantly shed scales derived from excessive growth of skin epithelial cells. The ...