Below are the main rubriks (i.e strongest indications or symptoms) of Natrum Carbonicum in traditional homeopathic usage, not approved by the FDA.
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FEVER AND CHILL
Febrile shuddering, with cold hands and hot cheeks, or vice versâ, but always without thirst.
(Shivering fits between 3 and 4 a.m. induced by overfatigue and anxiety)
R. T. C.).
Coldness of hands and feet.
Coldness and chilliness the whole day, more so in forenoon, with cold hands and feet with hot head; or the reverse, hot hands and feet with cold cheeks.
Heat with great debility and sleep.
Heat with perspiration over whole body.
Burning hot perspiration on forehead when the hat presses him.
Perspiration while eating.
Burning in feet, esp. soles, on walking.
Sweats in morning.
Nocturnal sweat, often alternating with dryness of skin.
Cold and constant sweat, as from anguish, with trembling from the pains.
Profuse sweat from the least physical exertion.≡ more ...