Silicea (Sil)

Silicea Sili

Homeopathic Remedy Silicea (Sil)

Silicea (Sil) , Silica Terra also known as Silica, Pure Flint -Pure silica, Silicon dioxide;

Chemical Formula: SiO2;

Kingdom: Minerals;

Stage: Chronic;

Side : Right, U.Rt.Low Lt.;

Miasm : Psoric, Sycotic, Tubercular, Syphilitic;

Thermal State: Chilly;

Action: OnlyPolycrest;

Thirst: Thirsty, Thirstless;

Appetite : Increased, Easy satiety, Reduced;

Sensitivity: Low, High;

Moon Phases: First Quarter, Full Moon, Last Quarter, New Moon;

Time Phases: Morning, Noon, Afternoon, Forenoon;

Gender: Male, Female, Child;

Element: Oxygen(O, 8), Silicon(Si, 14);

The precipitated, hydrated silica is used in Homeopathy. It is a white, light, amorphous powder.  Silicea (Sil) is indicated for Defective nutrition. Hurts fester. Induration and suppuration. Lacks grit. Chilly. Foul, corroding sweat. Ascending effects. Lack of stamina.

PREPARATION: The medicine is prepared by the trituration and dilutions of pure, precipitated silica.

Physiological Action

This agent produces necrosis and suppuration of the bones, fibrous tissue, glands, and mucous surfaces. The nutrition of these tissues is interfered with

The lymphatic glands are enlarged and show a tendency to suppuration. There are indications of neurasthenia.


This remedy is indicated in persons with light complexions, pale face, lax muscles and fine, dry skin. They are nervous, irritable, and suffer from a lack of nutrition as a result of imperfect assimilation. They are weak and debilitated, but restless and uneasy, and start at the least noise. They are always chilly even when talking exercise, and suffer from the effects of drafts. Their skin is unhealthy, every small injury suppurates. The lymphatic glands are indurated and show a tendency to suppurative process.

It is of service in SCROFULOUS, RACHITIC CHILDREN, who have large heads, open sutures and fontanelles. There is sweat about the head, which must be kept wrapped up, and a general tenderness of the surface. The abdomen is distended. The angles are weak, and the child is slow in learning to walk. There is a defective formation of bone and an excessive formation of cartilage.

The child is often head strong and obstinate.

It is useful in the SUPPURATIVE PROCESSES which involve the bones, periosteum, and soft tissues.

Also in involvement of the glands when suppuration is present, and when small wounds do not heal readily and are prone to suppurate. The skin is sensitive and irritable and the whole body is sensitive as if beaten. It also meets another phase of the suppurative process in profuse night sweats, which are dependent upon suppuration or phthisis.

It should be remembered in ailments that are the result of a SUPPRESSION of excessive foot sweats; the ill effects of vaccination; or the exposing of the head and back to a draft of air; also bromidrosis, when there is tenderness between the toes.

It is of benefit in chronic SICK HEADACHES. The pain ascends from the base of the brain to the vertex and settles over one of the eyes, usually the right. The pain is sticking, tearing, pressing in character. It is aggravated by motion, noise, or light; both sight and hearing is acute. The patient desires to lie down in a dark, quiet room, gets relief from warm applications and wrapping up. It may be attended by nausea and vomiting and it usually passes off during sleep.

It is frequently of benefit in CONSTIPATION when there is a sensation as though faeces remained in the rectum, from which there is not sufficient power to expel it, or the faeces are partially expelled and then suddenly recede into the rectum. The constipation is worse before and during menstruation.

It is useful in CHRONIC BRONCHITIS, when there is a deep seated organic cause for the disease. The cough is loose, racking and suffocating. There is a copious expectoration of thick yellow or greenish pus, which is accompanied by hectic fever, debility, and profuse night sweats.

It is also useful in emphysema, when the suppuration is chronic, and although drainage is good, yet the pus continues. It is thin and sanious. The patient is emaciated, is weakly, and is made worse by cold and by uncovering, especially the head.

It is useful during the suppurative stages of pulmonary tuberculosis; there is a loose, racking, suffocating cough, with a copious expectoration of a thick yellow or greenish pus, with hectic fever, emaciation, weakness and debilitating night sweats.

A/F [ Aliment From / Causation ]

Vaccination, stone cutting, loss of fluids, injuries, strains.

Foreign bodies, splinters. Suppression of foot sweat.
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Silicea (Sil)

[< – Aggravation]

< Cold

< Air

< Draft

< Uncovering

< Bathing

< Checked sweat especially of feet

< Damp

< Change of weather

< Nervous excitement

< Light, noise, jarring

< Touch

< Pressure

< Night

< Moon changes

< Mental exertion

< Alcohol

[>– Amelioration]

> Warm wraps to head

> Wet, humid weather

> Profuse urination

> Magnetism and electricity

MIND symptom

-Child – Intelligent. Averse to and < mother’s milk, vomits it. Sensitive, delicate, well-behaved, refined with fits of obstinacy. Sometimes because of fixed opinions.

-Timid, answers only to the mother. Irritable when not feeling well. Anxiety from noise. Thin body with big head and enlarged abdomen. Slow development.

-Slow learning to walk and talk. Bad assimilation, defective nutrition.

-Oversensitive, irritable and ostinate, demanding in early age.

-If corrected by mother, will never forget, and they become refined and yielding nature. They become too serious, too proper. Conscientious about trifles.

-Shy, refuses to answer, instead whispers to the mother.

-Because of their high intelligence overstimulated, lack of stamina results later in life.

-Mental acuteness, with physical weakness or torpidity.

-YIELDING, mild, shyness or timidity but not cowardice(like Lyc, Gels).

-REFINED, delicate patients. Refined sensibility will not oppose. SENSITIVE to opinions, considers your point, but internally keeping his own view.

-Never becomes dependent or demanding of the prescriber’s time.

-Though emotionally fairly well balanced, suffer from problems of self-esteem and self-confidence. Uncertain of his abilities and doubt all his work.

-Anxious conscientiousness over small details.

-Stage fright, performance anxiety, test phobia, conscious about self image. Want of self-confidence. Irresolution. Timid. Fears public speaking, examinations.

-Complaints from long mental exertion. Brain fag.

-Mental labour very difficult, cannot bear to think. Lack of stamina.

-Delicate, refined and aesthetic even aristocratic.

-Fear of pins and pointed things. Pin mania. Fixed ideas, thinks only of pins, fears them, searches them, and counts them.

-Clairvoyance from mental weakness.


-Constitution – adapted to nervous, irritable, sanguine temperament psoric diathesis.

-REFINED, DELICATE people. Light complexion, fine dry skin, pale face, weakly, with lax muscles.

-Complaints due to defective assimilation.

-Children-Scrofulous, tubercular diathesis, rachitic children with large heads, open fontanelles and sutures. Frequent colds and infections with enlarged glands, that may suppurate.

-Sweating about the head which must be kept warm by external covering.

-Distended abdomen.

-The baby is slow in learning to walk.

-Chilly and aggravated from cold weather and drafts. Wants to be wrapped up warmly.

-Glands become enlarged and hard and may suppurate.

-Excessive perspiration, foot-sweat, foul, acrid, destroying shoes,

-Suppression A/F.

-Pains violent, striking, pricking, stitching, splinter-like (Hep, Nit-ac).

-Slow, incomplete processes, then induration. Every hurt festers and easy suppuration (fistulae, abscesses, cicatrices, keloids).

-Capacity to throw out foreign bodies.

-Ascending effects.

-Complaints are aggravated at the new moon or full moon.

-Ill effects of vaccination (Thuj).


-Weakness, lack of energy.

-Aversion – to cooked or warm food, meat, salt, MILK (mothers’) which disagrees, FAT. Craves – cold food and drinks, ice creams, ice water, ice, eggs, fat.

-Head-Chronic aches after some disease of youth(Psor).

-Ascending from nape of neck to vertex, locating in one eye especially right(left eye – Spig) < Draft, uncovering > pressure, wrapping > profuse urination.

-Rectum-Constipation always before and during menses.

-Inactivity of rectum.

-When partly expelled recede again (Thuj).

-“Bashful stools” .

-Great straining, hard, needs mechanical aid.

-Fistula in ano alternate with chest symptoms (Berb, Calc-p).

-Male-After coition, sensation on right side of head as if paralysed.

-Extreme exhaustion after coition, takes 10 days to recover.

-Nocturnal emission, prostatorrhoea < straining at stool.

-Female-Discharge of blood from vagina every time the child takes the breast (Croto-t).

-Icy coldness over whole body during menses.

-Skin-Abscesses, felons, boils and fistulous ulcers.

-UNHEALTHY. TENDENCY TO SUPPURATION. Every little injury suppurates.

-Delicate, pale skin.

-Promotes expulsion of foreign bodies through skin (Anag).

-Keloid. Scars become painful, stinging and red.

-Eruptions, itching > night.

-Vitiligo. Ringworm. Impetigo.

-Tumours and warts.

KEYNOTES of Silicea (Sil):

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1. A/F suppressed foot sweat, which is offensive. Carrion like odour of feet, acrid eats up the shoes.

2. Stools recede again when partly expelled.

3. Discharge of blood from vagina when child takes the breast.

4. Promotes expulsion of foreign body from tissue eg. fish bones, needles, bone splinters.

5. Hair like sensation on tongue.

6. Fistula in ano.


– Slow incomplete processes, then induration.

– Every hurt festers, fixed ideas.

– Keenly sensitive to external impressions.

– Profuse discharges (sweating) if restricted cause problem.


1. Chilly patient, wants to be wrapped up warmly. Want of grit mentally and physically.

2. Obstinate, head strong. Easy suppuration, tendency to fistulous burrowings.

3. Inflammation, swelling and suppuration of glands. Profuse, offensive sweat, especially of feet and head.

CLINICAL condition of Silicea (Sil):

-Silica is one of greatest remedy for chronic diarrhoea in soldiers due to sleeping on damp grounds, eating all sorts of food, long exhausting marches (Dr Kent).

Silica child is always ameliorated by sea which seems to stimulate it’s endocrine system (Dr.G.Dano).


Complementary : Puls, Sanic, Thuj.

Followed Well By : Fl-ac, Hep, Lach, Lyc, Sep.

Follows Well : Bell, Bry, Calc, Calc-p, Cina, Graph, Hep, Ign, Nit-ac, Phos.

Inimical : Merc.

Compare : Ang, Ant-c, Ant-t, Apis, Ars, Asaf, Bar-c, Benz-ac, Berb, Calc, Calc-p, Caps, Caust, Cham, Chel, Cina, Con, Cupr, Gettys, Graph, Hep, Iod, Kali-bi, Kali-br, Kali-c, Lach, Led, Lob, Luna, Lyc, Mag-m, Maland, M-aust, Meny, Merc, Nat-c, Nat-m, Nat-s, Nit-ac, Nux-v, Paris, Petr, Ph-ac, Phel, Phos, Pic-ac, Plat-mur, Psor, Puls, Ran-b, Rhod, Ros-ca, Sang, Sars, Sep, Spig, Stann, Stron, Sul-ac, Sulph, Thiosin, Thuj, Vacc, Vario.

Antidoted By : Camph, Fl-ac, Hell.

It Antidotes : Merc-c, Sulph.

Duration Of Action : 40-60 Days.