Below are the main rubriks (i.e strongest indications or symptoms) of Causticum in traditional homeopathic usage, not approved by the FDA.
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Soreness in folds of skin, back of ears, between thighs
Warts large, jagged, bleeding easily, on tips of fingers and nose
Old burns that do not get well, and ill effects from burns
Pains of burns
Cicatrices freshen up; old injuries reopen
Skin prone to intertrigo during dentition.≡ more ...