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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Almost Constantly moist
Persistent dryness of the skin contraindicate Mercurius Vivus
Excessive odorous viscid perspiration; worse, night
General tendency to free perspiration, but patient is not relieved thereby
Vesicular and pustular eruptions
Ulcers, irregular in shape, edges undefined
Pimples around the main eruption
Itching; worse from warmth of bed
Crusta lactea; yellowish-brown crusts, considerable suppuration
Glands swell every time patient takes cold
Orchitis ( Clemat.; haman.; Pulsatilla Puls.)≡ more ...