Below are the main rubriks (i.e strongest indications or symptoms) of Natrum Phosphoricum in traditional homeopathic usage, not approved by the FDA.
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Sensation of something in throat; lump
Membrane, exudation, diphtheria, etc.; yellow
pulled from behind nostrils
swallowing; on swallowing
trachea (wind pipe)
Pulsating; tonsils; left
Swallowing; difficult; solids
Tickling in the air passages
External throat; goitre≡ more ...