Phytotherapy is a method based on the use of plants and minerals in order to treat different pathologies in the living being.
They can be prepared and used in a number of ways, from brews and essential oils for topical application to ointments or even as a nutrition complement.
The part of the plant that is used also varies: Leaves, flowers, roots, stems. There is even different uses of the same plant depending on the part of it you take.
The use of medicinal plants is as old as the human being. They were the first drugs. Also animals use them in their natural environment, eating different plants when they feel unwell. The example that may we all know is when the dogs eat grass as a purgative when they feel digestive discomfort.