Below are the main rubriks (i.e strongest indications or symptoms) of Mercurius Corrosivus in traditional homeopathic usage, not approved by the FDA.
Mercurius Corrosivus salt leads all other remedies in tenesmus of the rectum, which is incessant, and is not relieved by the stool. The tenesmus often involves the bladder as well. Bright’s disease. Gonorrhoea; second stage, with continuous tenesmus. Destroys the secreting portions of the kidneys. This process is slow, but sure. Albuminuria in early pregnancy ( Phosphorus Phosph. later and at full term).
Sixth potency. In solution 1: 1000, hypodermically injected under conjunctiva in choroiditis with progressive myopia. Stops immediately the severe aching pain behind eyeballs (Dr. G. D. Halle.)