Queen's delight appears to promote general detoxification. Queen's
delight is taken internally to help clear constipation, boils, weeping
eczema, and scrofula (tubercular infection of the lymph glands of the
neck). The fresh root is also taken for the treatment of bronchitis,
laryngitis, and throat infection. Externally, queen's delight is applied
in the form of a lotion to hemorrhoids and to
skin conditions such as eczema and psoriasis.
The root was once promoted as a blood purifier (restoring health by
cleansing the blood of so-called impurities) and as a syphilis cure; but
herbalists no longer recommend it. There is no scientific evidence for
any of its medicinal uses.