Below are the main rubriks (i.e strongest indications or symptoms) of Nat Mur in traditional homeopathic usage, not approved by the FDA.
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 ...