The scarlet pimpernel was at one time highly regarded as a medicinal herb, especially in the treatment of epilepsy and mental problems, but there is little evidence to support its efficacy and it is no longer recommended for internal use because it contains toxic saponins and cytotoxic cucurbitacins. The whole herb is antitussive, cholagogue, diaphoretic, diuretic, expectorant, nervine, purgative, stimulant and vulnerary. It can be taken internally or applied externally as a poultice. An infusion is used in the treatment of dropsy, skin infections and disorders of the liver and gall bladder. The plant is best harvested in June and can be dried for later use. Use with caution, large doses can cause polyuria and tremor. A homeopathic remedy is made from the plant. It is used internally to treat itchy skins and externally to remove warts. Source: https://pfaf.org/
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