Evidence supporting the use of: Slippery elm bark
For the health condition: Poison Ivy or Oak

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Synopsis

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

Slippery elm bark (Ulmus rubra) has a longstanding history in traditional herbal medicine, particularly among Native American groups and early European settlers in North America. Its use for skin irritations, including those caused by poison ivy (Toxicodendron radicans) or poison oak (Toxicodendron diversilobum), is primarily based on its mucilaginous (gel-like) properties. When mixed with water, slippery elm bark forms a soothing paste that can be applied topically to inflamed or irritated skin. Traditionally, it was used to relieve itching, burning, and inflammation associated with rashes, wounds, and other skin conditions.

However, there is limited scientific research to specifically validate the efficacy of slippery elm bark for poison ivy or oak dermatitis. Most evidence for its use is anecdotal or based on historical herbal texts. The mucilage in slippery elm bark is known to have demulcent properties, forming a protective barrier and possibly reducing irritation, which could offer symptomatic relief. Nevertheless, clinical trials or rigorous studies targeting poison ivy or oak exposure are lacking. Therefore, while its use is justified by tradition and plausible soothing effects, it does not have strong scientific backing for this particular indication.

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