Below are the main rubriks (i.e strongest indications or symptoms) of Natrum Phosphoricum in traditional homeopathic usage, not approved by the FDA.
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FEVER AND CHILL
Chilly during menses; most on chest; followed by hot flushes round body.
Feet icy cold by day, burn at night (during menses).
Cannot get to sleep feels so hot; thoughts crowd on his mind.
Flashes of heat and sweat.
Exceedingly sour-smelling sweats (S).
Intermittent fever with vomiting of sour masses (S).≡ more ...