CHAP. III. OF THE GOOD OR BAD SYMPTOMS OF SUPPURATIONS.

It is soon known from the nature of the symptoms, how a cure advances, and what event is to be hoped or feared: and these are commonly the same with what have been laid down in wounds. For they are good signs to sleep, to breathe easily, not to be troubled with thirst, not to loathe food, if there has been a slight fever, to be free of it: also that the pus be white, smooth, and not fetid. The bad signs are wakefulness, difficulty in breathing, thirst, loathing of food, a fever, and the pus black, or feculent, and fetid: also a hemorrhage in the process of the cure; or if before the cavity is filled up with flesh, the lips become callous, and the flesh there be dull of sensation, and spongy. But for a person to faint either in the dressing or afterwards, is worst of all. Moreover, if the fever cease suddenly, before the suppuration is begun, or if it continue after the discharge of the pus, these are just grounds for fear. There is room to fear also, if the wound is not sensible of corrosive medicines. But whatever symptoms shall happen to arise, it is the part of a physician to endeavour the recovery of his patient. Therefore, as often as he shall open a wound, he ought to wash it, if it seems necessary to repel the humour, with a mixture of wine and rain water, or with a decoction of lentils in water: if it needs cleansing, with mulse; and to apply the same dressings again. When the humour shall appear to be stopt, and the ulcer clean, it will be convenient to promote the growth of the flesh, and dress the ulcer with equal parts of wine and honey, and apply a sponge dipt in wine and oil of roses, which things are incarning. A proper regimen however, as I have observed elsewhere, is more effectual for this purpose: that is, when the fever is removed, and the appetite restored, bathing now and then, daily but mild gestation, and such kinds of food and drink as are of the most nourishing nature. All which rules also hold with regard to an abscess, that has been broken by medicines. But because it is hardly possible to cure a large tumour without the knife, the mention of these has been reserved to this place.

CHAP. IV. OF FISTULAS.

With regard to fistulas, if they penetrate pretty deep, so that a collyrium cannot reach the bottom of them, if they are tortuous, or consist of several sinuses, operations are more useful than medicines; and those, that run in a transverse direction below the skin, give less trouble than such as go directly inward. Therefore, if the fistula be transverse under the skin, a probe ought to be introduced, and an incision made upon that. If it be tortuous, its windings are to be followed by the probe and knife. And the same course must be taken, if several of them appear like rivulets uniting their streams. When we have reached to the end of the fistula, all the callosity must be cut out, and fibulae applied to it with medicines to agglutinate. But if it points directly inward, when its direction is found by a probe, that sinus must be cut out: then a fibula put upon the lips of the skin, and agglutinating medicines laid over it; or if the ulcer be very foul (which sometimes happens from a carious bone) when that also is cured, medicines to promote a digestion.

Of fistulas amongst the ribs.

It is common for fistulas to extend beneath the ribs. When this case occurs, the rib in that part must be cut through on both sides, and taken out, lest any thing corrupt be left within. It is usual for them also, when they have got through the ribs, to penetrate the transverse septum, that divides the intestines from the superior viscera. Which circumstance may be known, both from the situation, and from the violence of the pain, and because sometimes the air comes out with the matter, as it were bubbling, and particularly when the patient keeps in his breath. For this case there is no remedy. In the other kinds about the ribs, which are curable, greasy medicines are hurtful, and therefore we should use such as are adapted to wounds: but the best application is dry lint, or if any thing requires to be cleansed, the same dipped in honey.

Of fistulas in the belly.

There is no bone within the skin of the belly; but fistulas in that part are extremely dangerous; insomuch that Sostratus believed them incurable. That they are not always so, experience has shewn. And indeed, which may seem very wonderful, a fistula opposite to the liver and spleen, and stomach, is more safe than one opposite to the intestines: not that the thing is of its own nature more pernicious there, but because it exposes to a danger of another kind. The reason of which fact some authors have but little understood, though their experience convinced them of this difficulty. For the belly itself is often wounded by a weapon, and the intestines, that have fallen out, are replaced, and the wound united by sutures: the manner of doing which I shall point out presently. Therefore, when a small fistula has even penetrated the abdomen, it may be cut out, and the lips of it joined by a suture. But if the fistula spreads wider within, upon its being cut out, it must necessarily leave a pretty large vacuity, which cannot be sewed up without great violence; especially on the internal side, where there is a kind of membrane, which the Greeks call peritonaeum, that surrounds the abdomen. Therefore, as soon as a person begins to walk or move, the suture breaks, and the intestines are let loose, so that the patient must perish. But the case is not always desperate; and therefore, we must attempt the cure of smaller fistulas there.

Of fistulas in the anus.