Below are the main rubriks (i.e strongest indications or symptoms) of Mercurius Corrosivus in traditional homeopathic usage, not approved by the FDA.
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Coldness in the extremities, they look purple; with small spasmodic, frequent pulse.
Paralysis of the upper and lower extremities.
Arm up to the shoulder much swollen, red and covered with vesicles.
Rheumatic pains in left shoulder and shoulder-blade.
The deltoid muscle feels relaxed.
Stitches in the right hip-joint.
Sensation as if the legs had "gone to sleep".
The muscles of the thigh and calf feel relaxed.
Cramps in the calves. θ Dysentery.
The feet are icy-cold.≡ more ...