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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Warts, large jagged; bleed on washing
Ulcers bleed easily, sensitive; splinter-like pains; zigzag, irregular edges; base looks like raw flesh
Black pores on face, papules worse on forehead.≡ more ...