Below are the main rubriks (i.e strongest indications or symptoms) of Oxalicum Acidum in traditional homeopathic usage, not approved by the FDA.
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Burning in throat and stomach (heartburn).
In the throat, scraping (rawness), increased accumulation of thick mucus.
Dryness in throat (in morning) after diarrhoea.
Painful deglutition, esp. in morning.
Difficult deglutition, with sour eructations.≡ more ...