As Herbalist Matthhew Wood says:
In order to effectively treat disease we have to be able to decongest blood associated with inflammation, thin stagnant, congealed blood, tone the veins, stimulant the capillaries and arteries, and move the blood to or from the surface. Yarrow, the great ‘normalizer’ of the blood does all these things.
White Yarrow, Achillea millifolium, is antiseptic,astringent and is used both topically and internally in teas, extracts and salves.