Yarrow is characterized by its flat topped clusters of small flowers and fine feathery leaves. The entire plant is very aromatic, perhaps even pungent. Yarrow is one of the oldest herbal medicines still in use. Yarrow is used in many cold remedies as a powerful expectorant and analgesic. Yarrow opens the pores, soothes inflammation, purifies the blood and helping improve the flow of chi. Yarrow relaxes peripheral bloods vessels, thereby enhancing the circulation of blood. Topically, Yarrow is excellent at promoting tissue repair. Fresh, crushed leaves can staunch the flow of blood from a wound and stop nose bleeds. Yarrow has proven to be useful at counteracting the symptoms of our modern life styles that include many hours in front of screens and being under florescent lights. Yarrow is great at improving overall mood and stress levels.