The Materia Medica by Dr. Cyrus Maxwell Boger (1861 – 1935)  was written in 1915 & he was an American homeopath.

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List of all Homeopathic Materia Medica: Dr. Clarke, Boericke, Farrington, Allen, Dunham, N M Choudhury, Nash,  Boger,  Lippe,  Mure,  Tyler,  Constantine Hering, Kent,  Homeopathic Materia Medica, Online Materia Medica

Symphytum Officinale

Excessively painful (old) injuries; to periosteum or cartilage. Comminuted fractures. Prickling, stitching pains. Eye and face injuries. Non-union. Deficient callus. Coldness.