Below are the main rubriks (i.e strongest indications or symptoms) of Sulphuricum Acidum in traditional homeopathic usage, not approved by the FDA.
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BACK AND NECK
Back and neck
Sensation, as from excoriation, and as of a fracture, in the back and loins.
Drawing in the back and loins.
Pain in small of back.
Boring in small of back.
Furunculi on back.
Stiffness of back several mornings; on rising.
Painful sensibility and swelling of axillary glands. 21. Limbs.
Convulsive movements of arms and legs.
Pains in joints felt during sleep, disappear on waking.
Tearing in all limbs during menses, esp. in evening.
Inclination to cramp in hands and feet.
Wrists and other large joints painful and swollen, but not red.
Twitching of tendons.
L. neck painful on pressure.
Large suppurating swelling l. side of neck.≡ more ...