Preparing a Yarrow Wound Poultice — Prehistoric Herbal First Aid

Yarrow (Achillea millefolium) is one of humanity's oldest medicines. Archaeological evidence from Shanidar Cave in Iraq and El Sidrón Cave in Spain shows Neanderthals consumed yarrow over 60,000 years ago. Named after the Greek hero Achilles, who legend says used it to treat soldiers' wounds at Troy, yarrow contains achilleine — a compound that promotes blood clotting — alongside chamazulene and flavonoids that reduce inflammation. Known throughout history as soldier's woundwort, nosebleed plant, and staunch weed, this feathery-leaved herb with flat-topped white flower clusters grows wild across Europe, Asia, and North America. This blueprint teaches the oldest known method of wound treatment: crushing fresh yarrow leaves and flowers into a poultice, applying it directly to a wound to stop bleeding and reduce infection risk, and binding it in place with plant fibers. Every step uses only materials available to prehistoric humans — stone, plant, and water.