Below are the main rubriks (i.e strongest indications or symptoms) of Merc Viv in traditional homeopathic usage, not approved by the FDA.
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FEVER AND CHILL
Fever and chill
Generally gastric or bilious, with profuse nightly perspiration; debility, slow and lingering
Heat and shuddering alternately
Profuse perspiration without relief
creeping chilliness; worse in the evening and into night
Alternate flashes of heat in single parts.≡ more ...