Silicea terra
Silicon dioxide · Silica, flint, quartz, rock crystal. · Mineral
People who respond best to Silica typically lack mental and physical stamina. Their over-conscientious attitude to work can often lead to exhaustion or insomnia. They may feel anxious and “in two minds” about things, and fear pointed objects, such as needles. Their outlook and aspirations are limited by fear of failure. Very shy as children, they are self-conscious and unassertive as adults, but can be extremely stubborn and may relieve their frustrations on subordinates.
Chilliness is a typical physical symptom, along with a marked tendency for profuse, smelly sweat. Digestive problems and a weakened bone structure, due to poor absorption of food and undernourishment, may occur, along with recurrent infections caused by a weak immune system. Skin and bone problems are slow to heal and any wounds tend to suppurate.
Many symptoms appear at an early age: the fontanelles (membrane-covered spaces between the bones of a baby’s skull) close slowly, for instance, and the bones and teeth form more slowly and are weaker than those of other children.
Key symptoms
- lack of assertiveness and stubbornness
- ack of stamina
- chilliness, but with offensive-smelling perspiration
- susceptibility to recurrent infections
Worse (aggravation)
- Worse from cold and cold drafts
- Worse from dampness and cold air
- Worse from mental exertion and intellectual labor
- Worse from noise and jarring
- Worse from uncovering head
- Worse from suppressed foot-sweat
Better (amelioration)
- Better from warmth and warm wrapping of head
- Better from pressure and binding head tightly
- Better in warm room

Silicea terra. Pure Flint. Silex. Silicic anhydride. Silicon dioxide. SiO2. Trituration of pure, precipitated Silica.
Clinical
Abdomen, distended. Abscess. Acne. Anæmia. Ankles, weak. Anus, fissure of; fistula of. Appetite, depraved. Back, weakness of. Boils. Bones, necrosis of. Brain, concussion of. Brain-fag. Breast, sinuses in. Bunion. Cancer. Carbuncle. Cataract. Cellulitis. Cheloid. Chin, eruptions on. Cicatrix. Circulation, feeble. Coccygodynia. Conjunctivitis, phlyctenular. Constipation. Coryza. Cough. Debility. Dentition. Diabetes. Ear, affections of. Elephantiasis. Enchrodroma. Enuresis. Epilepsy. Eruptions. Excrescences. Eyes, affections of. Feet, burning; perspiring. Fester. Fibroma. Fistula. Foot-sweat; suppressed. Foreign bodies, expulsion of. Fractures. Ganglion. Gastric catarrh. Glandular swellings. Headache. Hernia. Hip-joint disease. Homesickness. Housemaid's knee. Hydrocele. Hypopion. Irritation. Jaw, caries of. Joints, sinovitis of. Lachrymal fistula. Lactation. …

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Headache better from binding head tightly, or from wrapping it up warmly.
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Head wet from sweating, particularly at night, likes wrapping it up.
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Water tastes bad, vomits after drinking.
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Increased menses with repeated paroxysms of icy coldness over the whole body.
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Offensive foot sweat, rawness between the toes, also complains after checking it.
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Want of vital warmth even when taking exercise
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Ailments following vaccination; abscesses. etc., even convulsions.
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Slow suppurating processes in general.

Phatak's chapter on Silicea terra is available in the app.
Read Phatak in the app
Tissue salts's chapter on Silicea terra is available in the app.
Read Tissue salts in the appClassical texts are in the public domain. Educational reference only — not medical advice.