Use internally for feverish illnesses (especially colds, and measles), mucus, diarrhea, dyspepsia, rheumatism, arthritis, menstrual and menopausal complaints, hypertension, and to protect against thrombosis after stroke or heart attack. Externally for wounds, nosebleeds, ulcers, inflamed eyes, and hemorrhoids. (Prolonged use of yarrow may cause allergic rashes and make the skin more sensitive to sunlight.)
