Willow bark is used to ease pain and reduce inflammation, and there is good evidence that it
is effective as an analgesic and anti-inflammatory. Researchers believe that the chemical salicin,
found in willow bark, is responsible for these effects. However, studies have identified several
other components of willow bark which have antioxidant, fever-reducing, antiseptic, and immune-boosting properties. Some studies have shown willow is as effective as aspirin for reducing pain and inflammation
(but not fever), and at a much lower dose. Researchers theorize that may be due to the other compounds
in the herb. More research is needed.