Mode; of use - decoction: the content of 2 tablespoons in half a liter of cold water. Then boil slowly for 15 to 20 minutes. Strain (sweeten with honey if necessary), sip. - Infusion: the content of a level tablespoon in a tea cup; pour boiling water, then leave under the lid for 20 to 30 minutes. Strain (possibly sweeten with honey), sip.