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Table 2 Common forms of preparation methods for remedies made of medicinal plants.

From: Traditional use of medicinal plants in the boreal forest of Canada: review and perspectives

Preparation method Description
Paste Fresh plant parts are crushed to obtain a paste used externally or internally.
Poultice Plant parts are crushed to obtain a soft moist mass generally used externally to treat swellings, pain, inflamed or infected body parts.
Juice Obtained by squeezing or crushing plant parts and filtering through cloth. Sometimes requires addition of freshwater or other liquid for dilution.
Powder Obtained by crushing dried plant parts.
Chewing Fresh plant parts are chewed without prior transformation.
Infusion Plant parts are plunged in either hot or cold water for several minutes. If hot water is used infusion is taken as a tea. More than one plant species can be used in conjunction.
Decoction Plant parts are boiled in water for several minutes and the extract is used. More than one plant species can be used in conjunction.