Pour simmering water over the dried plant and let infuse for about ten minutes, covered. This preparation was traditionally reserved for occasional use, under the advice of a professional. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.
The fresh plant is macerated in alcohol at an appropriate strength for several weeks, then filtered. This concentrated form requires supervision by an experienced practitioner. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.
Lightly crush the fresh plant or prepare a cooled concentrated decoction, then soak a compress to apply locally. Renew application as needed, for external use only. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.
It is found in the wild throughout almost all of Europe, in wasteland, roadsides, and cultivated gardens; it is also available dried in herbal shops.
Harvesting the flowering plant is traditionally done from spring to summer, preferably in dry weather.