Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Yarrow (Achillea millefolium) has a long history of use in traditional herbal medicine for treating various skin conditions, including rashes and hives. Traditionally, it has been applied topically in the form of poultices, salves, or washes to soothe irritated skin, reduce inflammation, and promote healing. The use of yarrow for skin complaints dates back to ancient Greece, with references to its wound-healing and anti-inflammatory properties. Folk medicine across Europe and North America has utilized yarrow for managing skin eruptions, itching, and allergic responses due to its reputed astringent and anti-inflammatory effects.

Scientific studies on yarrow’s efficacy for rashes and hives are limited. Laboratory research has identified compounds in yarrow—such as flavonoids, sesquiterpene lactones, and tannins—that may contribute to anti-inflammatory and antioxidant activities, potentially supporting its traditional use. However, most studies are preliminary and have focused on general anti-inflammatory effects or wound healing rather than specifically on rashes or urticaria (hives). Clinical trials in humans for these specific conditions are lacking.

In summary, yarrow’s use for rashes and hives is primarily justified by traditional practices, with some pharmacological studies offering plausible mechanisms of action. The evidence base supporting its effectiveness for these conditions, however, remains modest, and further clinical research is warranted to confirm its benefits.

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