The pharmacological actions of chickweed have not been significantly investigated, so traditional use and an understanding of the actions of individual constituents is used. INTERNAL USE — ANTITUSSIVE, EXPECTORANT AND DEMULCENT EFFECTS
Herbal saponins are well known to irritate mucous membranes and are successfully used as expectorants (e.g. senega). Herbs, such as chickweed, that contain saponins are also suspected to have a degree of expectorant activity when used internally; however, this has not been investigated in controlled studies.
EXTERNAL USE — SOOTHING IRRITATED SKIN AND ENHANCING WOUND HEALING
Chickweed is traditionally thought to have soothing properties when applied to the skin in an appropriate vehicle, although controlled studies are not available to confirm these effects. The saponin content may account for the herb's ability to help reduce itchiness.
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