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Essence of Materia Medica – page 181

to no avail. The odour arises from the discharge of toxins—like Psorinum, but not nearly so severe; it is impossible to even remain in the same room with a Psorinum patient. Sulphur, of course, is famous for offensive perspiration, but this arises from inadequate washing. Sulphur patients, lost in their minds, wash only in spots and not very thoroughly—a symptom which, of course, is difficult to elicit except by direct (and diplomatic) questioning.
The Silica foot sweat is also acrid. This is not a merely irritating perspiration; it actually chews up socks. If a normal person uses up a pair of socks every two years, the Silica patient uses them up within three months.
Considering the reserved, submissive mental state of Silica patients, it is not surprising that they develop tumours of all kinds—fibromas, breast cysts, swollen glands, warts etc. These tumours are usually hard, (like Calc. fluor, and Baryta mur). They even develop keloids, like Graphites. Fissures are another common skin complaint. The nails are brittle, and most characteristically, they have many white spots on the nails.
Of course, Silica is famous for opening up deep abscesses, and curing patients who have a tendency to suppurations. This is true when it fits the patient as a whole. Because Silica is a very deep-acting remedy, it is risky practice to routinely prescribe it when-ever an abscess needs opening. In patients with suppurative ten-dencies, Silica may help in the moment, even when it does not fit the patient as a whole. What effect will it have for the suppurations which will develop later—which may well be rendered more deep and more resistant to treatment?
The submissiveness of Silica displays itself characteristically in regard to its well-known constipation. The stool is hard, and the rectal muscles are inactive. There is great straining, but the stool slips back inside, and the patient gives up. The books approp-riately, call it "bashful stool".
Considering the food tendencies Silica has an aversion to salt, meat, and milk. There is an intolerance to both fat and milk. I have also observed that Silica can have a desire for eggs (like Calc. carb. and Pulsatilla).
If you encounter a patient with very little mental or emotional symptomatology it can be somewhat difficult to differentiate Silica from Nitric acid. Both tend to be thin and chilly. Both have acrid