Below are the main rubriks (i.e strongest indications or symptoms) of Merc Viv in traditional homeopathic usage, not approved by the FDA.
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 ...