Burdock is considered by many herbalists to be the best known medicinal for skin conditions (Hoffman, Moore). This herb is highly effective, gentle, and multipurpose. It promotes the flow of bile and also increases circulation to the skin. Further, it is a mild diuretic and lymphatic. Burdock is used widely as an alterative and blood purifier. The leaves can be made into a fresh poultice to soothe poison oak and poison ivy and a leaf decoction makes a therapeutic wash for the skin.
Flavor: acrid bitter cold, sweet 
Dried root as a cold infusion, decoction, or tincture.