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

Rheum Officinale

Sour, impatient, colicky children, who are always screaming and crying. Sour taste, vomitus, stools, sweat, etc.

Offensive mucus in mouth, after sleep. Difficult teething. Loathing after first bite. Colic with cries; > doubling up, < uncovering any part; then pappy, sour, brown, green, fermented, slimy or acrid stools; with shivering; < eating unripe fruit; < evening. Burning in bladder. Sleep, restless; with whining, cries and twitching of face, fingers, etc. Sopping, wet hair. Sweat on scalp, about nose, mouth or on upper lip.