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Materia Medica Viva Volume 8 – page 1693

tearing, ‘pains that fairly take the life out of him’ as he says. So Causticum will also sometimes relieve the lightning-like pain occurring in locomotor ataxia. As to the localisation, one of Hahnemann’s proving symptoms may be useful: ‘Tearing, especially in the joints, and extending from there through various bones of the body, also in several bones simultaneously.’ The rheumatic pain is always worse in dry weather, and when exposed to cold dry winds. Another prominent symptom is the occurrence of nocturnal leg cramps.
An important guiding feature is a sensation of rawness and soreness at different parts of the body. Nash gives a useful differentiation: ‘We observe that the sensation of soreness is not like that of Arnica, which is a soreness as if bruised and mostly muscular, nor of Rhus toxicodendron, which is an aching soreness as if sprained and oftenest found in the tendons and sheaths of the muscles, or areolar tissues; but it is a soreness mostly, if not altogether, of mucous surfaces as if the parts were raw.’ But this sensation will also be felt upon the skin, and it is a feeling as if the protection of the skin or mucous membrane were gone and raw uncovered tissues were exposed; exactly the feeling we have when the skin is burnt.
However, Causticum also has symptoms like this one given by Hahnemann: ‘At night, the side he lay on, hip and thigh, ached as if beaten or pressed, and he frequently had to turn over.’ Touch may provoke or aggravate such aching sore pain, or else burning pain: ‘Burning at each part of the body she grasps.’
Some other peculiar symptoms and features:
Respiratory problems are sometimes accompanied by a strange sensation. The patient will describe a ‘rock-like sensation’, a sensation as if there were a rock located in the part. Most often this sensation is noted in the chest in association with chest