Vervain, which has tonic and restorative properties, is sometimes used as a domestic herbal remedy. It is useful when taken internally in the treatment of headaches, fevers, nervous exhaustion, depression, gall bladder problems, insufficient lactation etc. It should not be given to pregnant women, though it can be used to assist contractions during labour. Externally, it is used to treat minor injuries, eczema, sores, neuralgia and gum disease. The leaves and flowering stems are analgesic, antibacterial, anticoagulant, antispasmodic, astringent, depurative, diaphoretic, mildly diuretic, emmenagogue, galactogogue, stimulant, tonic and vulnerary. The plant is harvested as flowering begins in the summer and dried for later use. Some remarkable results have been obtained when using this plant in the treatment of certain tumours, but further research needs to be carried out before definite claims can be made. The root is astringent, it is used in the treatment of dysentery. This species was ranked 12th in a Chinese survey of 250 potential antifertility plants. The plant is used in Bach flower remedies - the keywords for prescribing it are 'Strain', 'Stress', 'Tension' and 'Over-enthusiasm'. Source: https://pfaf.org/
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