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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Roof of mouth sore to touch.
Gums and teeth
Burning in mouth, as from pepper; mouth dry, thirst, gums red.
Throbbing toothache, with great restlessness; worse from warm, intolerable to hot drink.
Toothache lessened by cool air, and holding cold water in mouth.
Gums burns like fire.
Much saliva after meals.
Blisters, with burning pain, on tip of tongue.
Taste unpleasant, slimy, and tongue coated with mucus.
No taste, mornings; mouth feels rough, numb.≡ more ...