Has antifungal properties (Sources: www.naturaldatabase.com; and Plant Physiology, April 2002, pages 1346–1358). There is one animal study showing that, when taken orally, it can stop itching associated with dermatitis (Source: Phytotherapy Research, September 2001, pages 506–510); however, when applied topically there is no benefit when compared to a placebo in cases using jewelweed to reduce itching related to dermatitis or poison ivy (Source: American Journal of Contact Dermatitis, September 1997, pages 150–153).