Trombidium
Red acarus of the fly
Boericke, Pocket Manual of Homœopathic Materia Medica, 9th ed., 1927, p. 655
Has a specific place in the treatment of dysentery. Symptoms are worse by food and drink.
Abdomen
Much pain before and after stool; stool only after eating. Griping in hypochondrium in morning. Congestion of the liver, with urgent, loose, stools on rising. Brown, thin, bloody stools, with tenesmus. During stool, sharp pain in left side, shooting downward. Burning in anus.
The book’s Dose section is left out: Samepath quotes the books but gives no dosing advice.