KEY SYMPTOMS cracked skin • chilliness • aversion to fatty foods • irritability • offensive-smelling perspiration • person tends to feel worse in winter
Petroleum (from the Latin petra, or "rock," and oleum, "oil") is formed by the decomposition of plant and animal matter in rock sediment deposits on the sea bed. Over time, heat and pressure transform this organic material into petroleum, or crude oil. It is used in the manufacture of many goods, from fertilizers to paints and plastics to explosives. Proved by Hahnemann and published in his Chronic Diseases (1821-34), the remedy is prescribed mainly for skin complaints and nausea.
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