Silicea (Silica / Silicea Terra) — Homeopathic Materia Medica

🧠 MENTAL SYMPTOMS

🩺 PHYSICAL SYMPTOMS

Head

• Chronic headaches beginning in the occiput, spreading to the forehead and settling over one eye (right-sided)
• Headache from mental exertion, better by wrapping the head tightly (pressure)
• Profuse, offensive sweating of the scalp, especially at night soaking the pillow
• Hair falls out; tendency to develop skull/bone affections

Eyes

• Recurrent styes on eyelids
• Fistula lachrymalis (tear duct obstruction)
• Sensitivity to light; dim vision

Ears

• Roaring, ringing in ears
• Deafness from swelling of the Eustachian tube

Nose

• Chronic nasal catarrh; hard, dry crusts in the nose (bordering on ozaena)
• Tip of nose itches; offensive discharge
• Loss of smell

Face & Mouth

• Acne and pimples; skin tends to suppurate
• Ulceration of gums and cheeks
• Teeth decay at roots; difficult teething in children
• Toothache, better by warmth

Throat

• Tonsils chronically enlarged; tendency to quinsy (peritonsillar abscess)
• Hardened cervical lymph nodes

Chest & Respiratory

• Cough with expectoration of foul-smelling, lumpy mucus
• Tendency toward tuberculosis or fibrosis (complementary to Tuberculinum)
• Night sweats on chest and upper body
• Chronic hoarseness

Abdomen & GI

• Constipation: stool recedes back when partially expelled ("bashful stool")
• Fistula in ano; fissures; abscesses that refuse to heal
• Bloated abdomen, especially in malnourished children
• Obstinate constipation; hard, knotty stools

Urinary

• Involuntary urination; weakness of sphincter
• Urethral irritation

Skin

• Abscesses, boils, carbuncles that suppurate slowly and refuse to heal
• Keloid formation after injuries or surgery
• Unhealthy skin — every small injury festers
• Ingrown toenails (a keynote symptom)
• Offensive foot sweat (suppressed foot sweat causes many complaints)
• Tendency to form fistulas and sinuses
• Cysts (sebaceous, pilonidal)

Back & Extremities

• Spinal irritation; weakness of spine; curvature tendency
• Cold, clammy hands and feet
• Profuse, offensive perspiration of feet — when suppressed, causes other complaints
• Brittle, ribbed nails with white spots
• Cramps in calf and feet

Sleep

• Sleepwalking (somnambulism — a keynote)
• Restless sleep; wakes unrefreshed
• Profuse night sweats

⚡ KEYNOTE / CHARACTERISTIC SYMPTOMS

1. Bashful stool — stool slips back when nearly out
2. Offensive foot sweat — suppressed foot sweat drives illness inward
3. Sweating of head and occiput at night, soaking the pillow
4. Ingrown toenails
5. Somnambulism (sleepwalking)
6. Fixed obstinacy beneath a yielding exterior
7. Every injury tends to suppurate / form fistula
8. Chilly patient — cannot tolerate cold; feels better with warmth and wrapping

🌡️ MODALITIES

👤 CONSTITUTIONAL TYPE (The Silicea Person)

• Thin, pale, refined-looking individual; looks delicate and undernourished
• Fine hair, thin skin, poor muscle development
• Children: late walkers, late talkers, slow teething; pot-bellied with thin limbs
• Lacks "grit" — physically and mentally; the homeopathic remedy is sometimes called "the homeopathic surgeon" because it promotes expulsion of foreign bodies (splinters, glass shards)
• Chronic tendency to suppuration and slow healing
• Chilly, sweaty, sensitive, refined

🔗 RELATIONSHIPS

📌 CLINICAL CONDITIONS

• Recurrent abscesses, boils, fistulas
• Chronic sinusitis with thick crusts
• Splinter or foreign body retention (promotes expulsion)
• Malnutrition / failure to thrive in children
• Keloids and post-surgical scarring
• Chronic constipation (bashful stool type)
• Night sweats, offensive perspiration

Note: Homeopathy operates outside conventional pharmacological frameworks. Harrison's Principles of Internal Medicine (21st ed., p. 13729) notes that homeopathic remedies lack conventional biologic underpinning. The above represents classical homeopathic materia medica as documented in Boericke's Materia Medica, Kent's Repertory, and Allen's Keynotes.