Introduction: This remedy is prepared from chemical i.e. Flouric Acid. Destructiveness is the keynote of this acid. It produces slow deeply destructive effects, caries of bones esp. long bones; ulcerations, bedsores; varicose veins. It is suitable to complaints of old age or prematurely aged. Pale, miserable, cachectic, flabby and broken down patients. Always feels too hot; wants to bathe in cold water. Tissues are puffy, indurated and fistulous. Discharges are thin; foul, acrid or salty, causing itching. Oedema. Felon. Naevi. Secondary syphilis. Increased ability to exercise his muscles, without fatigue, regardless of most excessive heat of summer of cold of winter. Numbness; of the part not lain on; in brain diseases, spinal affections. Calcareous degeneration. Nevus, flat. Suffering if the call for evacuation is not immediately attended to. Dropsy; with numbness or without. Goitre.