Below are the main rubriks (i.e strongest indications or symptoms) of Calc phos in traditional homeopathic usage, not approved by the FDA.
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RECTUM, ANUS, STOOL
Stitches in the rectum toward the anus or shooting in the anus.
Diarrhoea, during dentition, with much flatus.
Stools green and loose, sometimes slimy, with children; soft, passed with difficulty, accompanying the headache of school girls.
Pus discharged with the stools, which are extremely offensive.
Hard stool, with depression of mind, causing headache with old people.
Itching in the anus; most in the evening.
Protruding piles aching itching and sore; oozing of a yellow fluid.
Small furuncle near anus, to the right, with much pain; cannot sit, has to stand, or lie on left side; discharges blood or pus and remains a painless fistula.
Fistula in ano, alternating with chest symptoms.≡ more ...