Homeopathic remedy Mercurius drug symptoms and indications from Condensed Materia Medica by Constantine Hering, published in 1877….

      Quicksilver. Hahnemann. The Element.


      Memory weak; mind obtuse; drowsy.

Anxiety and restless change of place: ebullitions, sweat; apprehensive; imaginary fears; fears he will lose his mind: worse evening and night; wants to go abroad; tries to flee from the house.


Delirium and other mental derangements of drunkards.

Hurried speech.

Continuous moaning and groaning.

Irritable, quarrelsome; or, taciturn and indifferent.

Suspicious, distrustful mood.

Imbecility; does foolish, mischievous, disgusting actions.


      Fainting after sweetish rising in the throat, followed by sleep.

Vertigo: as if in a swing; after stooping; when lying on the back; with headache and nausea; everything turns black.

Dull and stupid feeling, with dizziness.

Inner Head

      Burning in head, especially in left temple; worse at night lying in bed, better on sitting up.

Head feels as if in a vice, with nausea; worse in the open air, from sleeping, eating and drinking; better in room.

Tension over forehead, as if in a hoop; worse at night in bed; better after rising and from lying the hand on it.

Inflammation of brain, with this hoop-like feeling; burning and pulsation in forehead; worse at night, better after riding.

Congestion to the head.

Head feels as if it would burst, with fulness of the brain.

Head feels as if it was getting larger.

Severe pains in forehead, top of head and occiput; stitches through the head.

Dulness in forehead, stitches through temples; aching and weariness in nape of neck.

Tearing in head; heat and sweat; worse at night, in warmth of bed; better toward morning and while lying quietly.

Outer Head

      Hydrocephalus; body bathed in sweat.

Sutures open, large head; precocious or premature mental development; dirty color of the face; sour night-sweat.

Exostoses on the hairy scalp, with feeling of soreness when touched; worse at night, in bed.

Scalp: tense; painful to touch; worse when scratching, which causes bleeding; eruption, pustular, fetid, with yellow crusts; erysipelatous; worse on the forehead; hairs fall out, mostly on sides and temples.

Lacerating, tearing and stinging in the bones of the skull.

Fetid, sour-smelling, oily sweat on the head; on the forehead it is icy-cold; with burning in the skin, worse at night, in bed, and after rising.

Great chilliness, with contractive, tearing pain of the scalp, extending from forehead to neck.


      Black points before the yes.

Vanishing of sight for a few moments.

Much worse from heat and glare of fire.

Lachrymation profuse, burning, excoriating; discharges muco- purulent, thin, acrid; burning, tearing, sticking pains in and around eyes; worse at night; pimples on the cheeks.

Ulcers of the cornea, vascular and surrounded by greyish opacity; pus between the corneal layers.

Iritis, syphilitic; pains around the eye, on forehead and temples; worse from touch at night; throbbing, shooting pains in the eye. Hypopyon.

Lids: spasmodically closed; thick, red, swollen, erysipelatous; sensitive to cold, heat and to touch; raw, excoriated; burning, as from fiery points; margins ulcerated, scabby.

Ciliary blepharitis, caused by working over fires or forges.


      Hardness of hearing; sounds vibrate in the ears; obstruction momentarily better after swallowing or blowing the nose; external meatus moist.

Internal and external ear inflamed, with stinging, tearing pains; purulent discharge, green, offensive, or thin, sanious: glands swollen.

Boils in the external canal; also fungous growths.

Constant cold sensation in the ears.


      Nosebleed: when coughing and during sleep blood hangs in a dark, coagulated string.

Coryza: fluent, corrosive, with much sneezing; nostrils bleeding, scurfy; nose red, swollen, shining; worse from damp weather; at night; from either cold or warm air; not relieved by sweat.

Greenish, fetid pus from the nose; nasal bones swollen.


      Pale, yellow, earthy; red and hot cheeks; pale and sunken : pale, doughy, full.

Yellow, dirty scurf, with fetid discharge, itching and bleeding when scratched.

Tearing in the face: lacerating pains, salivation; from cold or caries of the teeth.

Swelling of one (right) side of face, with heat and toothache.

Pimples with bluish-red areolae; no itching.

Lower Face

      Lips: dry, cracked, ulcerated; black; burning pimples, with yellow crusts.

Mumps on the right side; pale swelling.

Lockjaw from glandular swellings, with stinging pains.

Caries of the jaw.


      Teeth feel loose, fall out.

Toothache from caries; or when the dentine is inflamed; returns in damp weather or evening air; pains tearing, lacerating, shooting into face and ears; worse from warmth of bed, from cold or warm things; better from rubbing the cheek.

C. Hering
Hering got the degree of M. D. from the University of Wuezburg with highest honours. The theme of his thesis was "De'Medicina Futura" (The medicine of future). Hering left Germany for West Indies and finally arrived at Philadelphia in Jan, 1833. He established a homeopathic school at Allentown, Pennsylvania, commonly known as "Allentown Academy". Soon he became very popular as a physician. He is known as the 'Father of Homeopathy' in America.