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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Lids red, thick, swollen
Profuse, burning, acrid discharge
Floating black spots
After exposure to glare of fire; foundry men
parenchymatous keratitis of syphilitic origin with burning pain
Iritis, with hypopyon.≡ more ...