Silicea

Prepared from silicon dioxide (SiO₂)—a naturally occurring mineral found in quartz, flint, sand, and rock crystal. It is chemically inert, crystalline, and structurally stable. Used in both homeopathy and industry.

Extensively used in glass, ceramics, electronics, and construction materials. Biologically, it supports connective tissue and is found in hair, nails, and bone. Used as a nutritional supplement for skin and joint health.

First proved by Samuel Hahnemann, with additional verification by Hering, Boericke, and Clarke

• Connective tissue: nails, bones, joints, ligaments, skin
• Lymphatic and glandular system: chronic suppuration, abscesses
• Nervous system: fatigue, chilliness, oversensitivity
• Mind: timidity, indecisiveness, performance anxiety
• Feet and extremities: offensive sweat, weakness
• Spine and meninges: scoliosis, neuralgia, slow development in children
• Left side and lower right quadrant (e.g., right inguinal region)

• Warmth, especially warmth of bed [Kent]
• Wrapping up, especially head and feet
• Summer, and warm, dry weather
• Lying on painful side (oddly relieves)
• Profuse perspiration, which relieves symptoms
• Discharging, especially abscesses, boils, or ear discharges
• Constancy and routine (emotionally stabilising)

• Cold, drafts, uncovering, especially of head or feet [Clarke]
• Full moon (mental and physical aggravation)
• Suppression of sweat, eruptions, or discharges
• Vaccination, especially if chronic symptoms followed
• Mental exertion, study, or anticipation
• Milk, often disagrees
• Change of weather, especially from warm to cold
• Exams, performances, interviews (anticipatory anxiety)

• Calcarea carbonica – Similar chilliness, sweat of head, and development issues; Calc. is fatter, rounder, more fearful; Sil. is thinner, more delicate, anxious about performance
• Hepar sulphuris – Both produce suppuration and sensitivity; Hepar is more irritable, oversensitive to pain, with sudden onset; Sil. is more slow, passive, and focused on chronic suppuration
• Phosphorus – Also chilly, sensitive, and prone to lung complaints; Phos. is more open, extroverted, and has bleeding tendencies
• Sulphur – Similar offensive sweat and poor healing; Sulph. is more extroverted, egotistical, and hot
• Tuberculinum – Also tubercular miasm, chronic fatigue, and recurrent infections; Tub. is more restless, destructive, and nomadic

• Complementary: Calc., Fluor-ac., Puls.
• Antidotes: Camph., Nux-v., Puls.
• Inimical: Merc.
• Follows well: Hepar., Calc., Sulph.
• Precedes well: Tub., Lyc., Nat-m.

Silicea is the remedy of perseverance and perfection hidden beneath fragility. It is suited to the timid, the introspective, the chilly, and the delicate—those who seem to break easily but, with the right support, prove deeply resilient. It is the silent builder, repairing tissues, bones, and character alike, clearing long-held infections, and reawakening vitality. It transforms weakness into quiet strength, and timidity into inner resolve.

• Top remedy for chronic suppuration, abscesses, fistulas, and boils
• Essential in chronic otitis media, sinusitis, and delayed development in children
• Indispensable in performance anxiety, anticipatory diarrhoea, and chronic fatigue
• Use in slow-healing wounds, post-vaccination states, and recurrent infections
• Useful in brittle nails, bone pains, and deformities
• High potencies (200C–1M) for deep constitutional traits
• Avoid in active tubercular conditions with great heat or rapid wasting

Mind

• Timidity, public appearance
• Fear, failure of
• Obstinate, quiet
• Anxiety, anticipation
• Discouraged, trifles about

Head

• Perspiration, scalp, night
• Fontanelles, open
• Headache, occiput to forehead
• Hair falling

Ears

• Discharges, offensive
• Otitis media, chronic
• Hearing loss, post-suppression

Rectum

• Constipation, soft stool, difficult to expel
• Fistula in ano
• Haemorrhoids, painful, protruding

Extremities

• Sweat, feet, offensive
• Nails, brittle
• Panaritium, recurring
• Bone pains, long bones, night

Skin

• Boils, recurrent
• Abscesses, slow healing
• Cracks, heels
• Ulcers, indolent

Generalities

• Chilliness, general
• Worse, uncovering
• Better, wrapping up
• Worse, full moon
• Better, discharges, from

Samuel Hahnemann – Materia Medica Pura: Original proving data, particularly on mental weakness and bone tissue

James Tyler Kent – Lectures on Homoeopathic Materia Medica: Rich insights into Silicea’s mental profile, healing capacity, and keynotes

C. Hering – Guiding Symptoms of Our Materia Medica: Supplied detailed observations on chronic suppuration, bone and glandular disease

William Boericke – Pocket Manual of Homoeopathic Materia Medica: Provided clinical focus on abscesses, foot sweat, and constitutional traits

John Henry Clarke – Dictionary of Practical Materia Medica: Extended commentary on modalities, chronic discharges, and delayed development