Mercurius Corrosivus – The Homeopathic Remedy for Dysentery, Tenesmus & Ulceration

• Common Name: Corrosive Sublimate
• Source: Mercuric Chloride (HgCl₂)
• Type: Inorganic Compound
• Family: Mercurials

Sphere of Action

Acts especially on mucous membranes, producing ulceration, intense burning, and tenesmus, particularly in the gastrointestinal and genitourinary tracts. A deeper and more violent form of Mercurius.

General Indications

• More acute, intense, and rapid than Mercurius solubilis
• Rapid destruction of tissues
• Severe inflammation, pain, and ulceration

Mind

• Anxious restlessness
• Irritability and delirium in fever
• Confusion and dullness with prostration

Rectum & Stool

• Intense tenesmus of rectum and bladder — constant, ineffectual urging
• Slimy, bloody, offensive, greenish diarrhea
• Stool is hot, scanty, and passed with burning and cutting pains
• Worse at night, during and after stool
• Tenesmus continues even after stool is passed (Keynote)
• Dysentery with much straining, but only a little blood and mucus

Urinary System

• Painful, burning urination
• Albuminuria
• Scanty, bloody urine
• Tenesmus of bladder, similar to rectum
• May feel as though urine cannot be retained or fully voided

Mouth & Throat

• Gums swollen, ulcerated, and bleed easily
• Salivation: Profuse, offensive, metallic taste
• Throat swollen, dark red, with intense burning pain
• Pain worse from swallowing, especially liquids
• Diphtheria, ulcerated sore throat, with great burning and salivation

Nose

• Acrid, excoriating nasal discharge
• Ulceration and scabs in the nostrils
• Foul smell from nose

Skin

• Ulcers with sharp, defined edges
• Sloughing, gangrenous ulcers
• Erysipelas with intense burning
• Skin very sensitive, hot and inflamed

Modalities

Worse From	Better From
Night, warmth of bed	Rest, cold applications
Cold air, touch, pressure	Open air (partially)
During and after stool or urination	Lying still (sometimes)

Potency & Dosage

• Typically used in low to moderate potencies (3x – 30C) for acute conditions
• Acts quickly in dysentery, urogenital infections, ulcerative throat conditions

Relationships

Complementary	Similar To	Antidoted By
Arsenicum album	Mercurius sol, Nitric acid	Hepar sulph, Opium

Keynote Symptoms

• Intense tenesmus of both rectum and bladder
• Bloody, slimy, hot stool with constant straining
• Violent burning in throat, mouth, rectum, and bladder
• Ulcerative, destructive mucosal inflammations

One-Line Summary

Mercurius Corrosivus is a violent, ulcerative remedy with intense tenesmus, burning, and destruction of mucous membranes — especially in dysentery and urinary tract infections.