Below are the main rubriks (i.e strongest indications or symptoms) of Nat Mur in traditional homeopathic usage, not approved by the FDA.
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Itching and pricking in the skin.
Skin suffused, but no rash; tongue burned as from continued use of salt; scarlatina.
Large red blotches, itching violently.
Stinging rash over whole body; nettle-rash after violent exercise.
Tetter in bends of joints, oozing of an acrid fluid; crusts with deep cracks; scaly eruption on flexor surfaces.
Skin dirty-looking, withered; chlorosis.
Blood-boils.≡ more ...