Horseweed leaves: make a poultice of the leaves & apply topically

Oak bark or galls: boil a small amount of water & make a poultice of the bark or strong decoction of the galls & apply topically

Yarrow flowers or leaves: apply poultice topically

Shepherd’s Purse leaves: no data yet

Bibliography: Richard Lonewolf

Database Entry: Distance Everheart 4-6-2013