Corpus of Electronic Texts Edition
An Irish Materia Medica (Author: Tadhg Ó Cuinn)

subsection 172

172. Lisium: i.e. the gum of a tree; hot in the first degree and dry in the second degree, as Platearius says; the other doctors say that it is the juice of a herb that grows in the eastern land. It should be dried in the beginning of summer; it retains its efficacy for two years; it is called oculus lucidus i.e. it clears the eyes of their darkness, and brings them brightness; it has the cleansing and expelling virtues. If powder of licium with rose water be put on the eyes it will clean them and renew the vision. If powder of licium with rose water be rubbed on lesions of the mouth, it will promptly help them. If the same powder with pig lard be put in the rectum as a suppository, it will relax the bowels without danger. If a pessary be made of pig fat and powder of licium be sprinkled on it, and it be put in the vagina, it will clean it and induce menstruation. If powder of licium and powder of ceruse be mixed with white of egg and applied to the face, it will clean it of its exudations.