Below are the main rubriks (i.e strongest indications or symptoms) of Natrum Sulphuricum in traditional homeopathic usage, not approved by the FDA.
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Piercing pain in right ear inward; sharp, lightning-like stitches in the ear; worse going from cold air into warm room, worse in damp weather, living on wet ground, etc.
Earache, as if something were forcing its way out.
Heat in right ear, evening.≡ more ...