From our English Pines, if their stems be wounded, the oleo-resin known as Turpentine, can be procured. This is so truly a vegetable product, and so readily available for medical uses in every household, being withal so valuable for its remedial and curative virtues that no apology is needed for giving it notice as a Herbal Simple. The said oleo-resin which exudes on incising the bark furnishes our oil, or so-called spirit of Turpentine. But larger quantities, and of a richer resin, can be had from abroad than it is practicable for England to provide, so that our Turpentine of commerce is mainly got from American and French sources.
The oleo-resin consists of a resinous base and a volatile essential oil, which is usually termed the spirit.
The Pinus Picra, or Silver Fir-tree, yields common [577] Turpentine; and to sleep on a pillow made from its yellow shavings is a capital American device for relieving asthma. Fir cones are called "buntins," and "oysters."
"Tears," or resin drops, which trickle out on the stems of the Pine, if taken, five or six of these tears in a day, will benefit chronic bronchitis, and will prove useful to lessen the cough of consumption.
When swallowed in a full dose, Turpentine gives a sensation of warmth, and excites the secretion of urine, to which it imparts a violet hue. It also promotes perspiration, and stimulates the bronchial mucous membrane. From eight to twenty drops may be given as a dose to produce these effects; but an immoderate dose will purge, or intoxicate, and stupefy, causing strangury, and congestion of the kidneys.
For bleeding from the lungs, five drops may be given, and repeated at intervals of not less than half-an-hour, whilst needed. The dose may be taken in milk, or on sugar, or bread.
With the object of meeting for a curative purpose such symptoms occurring as disease which large doses of this particular drug will produce, as if by poisoning, in a healthy person, quite small doses of Turpentine oil will promptly relieve simple congestion of the kidneys, when occurring as illness, it may be from exposure to cold, and accompanied by some feverishness, with frequent urination, as well as a dragging of the loins. On which principle three or four drops of a diluted tincture of Turpentine (made with one part of Turpentine to nine parts of spirit of wine), given in a spoonful of milk every four hours, will speedily dispel the congestion, thus acting as an infallible specific, and a similar dose of the same tincture will quickly subdue rheumatic inflammation of the eyes.
[578] A pleasant form in which to administer Turpentine, whether for chronic bronchitis or for kidney congestion from cold, is a confection. This may be made by rubbing up one part of oil of turpentine, with one part of liquorice powder, and with two parts of clarified honey. Combine the first two together, then add the honey. If the Turpentine separates, pour it off, and add it again with plenty of rubbing until it unites. From half to one teaspoonful of this confection, when mixed with two tablespoonfuls of peppermint-water, will be found palatable, and may be repeated two or three times in the day.
What is called Terebene, a most useful medicine for winter cough, is produced by the action of sulphuric acid on Turpentine. From five to ten drops may be taken on sugar three or four times in the day, and its vapour acts by inhalation as a very useful antiseptic sedative in consumptive disease of the lungs.
Externally, Turpentine is stimulating and counter-irritating, and derivative. When applied to the skin, unless properly diluted, Turpentine will cause redness and smarting to a painful degree, with an outbreak of small blisters. As an embrocation, the oil of turpentine mixed with spirit of wine and camphor, together with soap liniment, proves very efficacious for the relief of sciatica, and for the chronic rheumatism of joints. Also, when compounded with wax and resin, it makes an excellent healing ointment for indolent, and unhealthy sores.