Below are the main rubriks (i.e strongest indications or symptoms) of Nitric Acid in traditional homeopathic usage, not approved by the FDA.
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Skin dark, dirty; brown-red spots.
Burning hot skin; fine miliary rash. θ Scarlatina.
Itching nettle-rash in open air.
Rhagades, deep, bleeding.
Frost-bites, itching; inflamed from slight degree of cold; skin cracked.
Condylomata moist, like cauliflower, hard, rhagadic, or in thin pedicles.≡ more ...