Nitric Acid
Sensation as if splinters or sticks were in the anus. There is much tenesmus and constriction, and a constant oozing of the foetid matter from the parts, with burning, rawness and smarting.

Ratanhia
Rectum feels as if full of broken glass, burns for hours after passing stools. Much constriction about the anus, cutting and lancinating pains in the rectum, and dryness of the anus with sudden stitches in it. The temper is irritable.

Graphites
In eczematous subjects where the anus is extremely sore and the stools are covered with mucus, with no tenesmus or constriction.