SECT. IX.—ON EPINYCTIDES.
Epinyctides are small ulcers breaking out spontaneously on the skin, in the form of bullæ, reddish, and when broken, discharging a bloody ichor. These are not very troublesome during the day, but at night, they are more painful than the smallness of the ulcer would bespeak. Wherefore, having dissolved the juice of laserwort in water, apply it; for it is desiccative without being pungent; or, having levigated hemlock, apply it; or crude cabbage with water, or triturate parsley with polenta, and apply; or, triturate the leaves of henbane with honey, and apply; or, strychnos by itself, and with the green coriander; or, use the leaves of olives boiled with water; or, having triturated raisins deprived of their stones, and spread them upon a splenium or oblong pledget, apply; or triturate maiden-hair with honey. They must avoid all acrid, acid, and saltish things, also fomentations, baths, and insolation.
Commentary. Celsus (v, 28); Aëtius (xiv, 61); Oribasius (Morb. Curat. iii, 54); Actuarius (Meth. Med. ii, 11; vi, 8); Pollux (Onomasticon iv, 24); Avicenna (iv, 3, 1, 13); Serapion (v, 8); Haly Abbas (Theor. viii, 17); Pract. (iv, 8); Rhases (Divis. i, 122.)
Celsus describes the epinyctis as a bad species of pustule, somewhat livid or red, about the size of a bean, very painful and inflamed, and coming on principally at night, whence it derives its name. Persons of all ages, even infants at the breast, are subject to it, and in treating them he directs the regimen of the nurse to be properly attended to. In laying down the rules of treatment he puts particular stress upon the hot bath.
Aëtius, Oribasius, and Actuarius treat of it as our author. Pollux defines it to be a vesicle of a palish colour, somewhat humid and bloody, and forming about the legs and feet in the night.
The Arabians give a similar account of epinyctis, under the names of Sare, Serie, and Essere. Thus Serapion recommends bleeding if required by the general symptoms, purging with myrobalans and prunes; and external applications, containing sumach, savin, &c. Haly Abbas, who describes it as one of his serie, approves of much the same treatment. Avicenna and Rhases in like manner recommend bleeding, gentle purgatives, cooling lotions, and the tepid bath. Rhases, in his ‘Continens,’ applies the directions given in this chapter by Paulus to the treatment of the cutaneous disease, which he calls sera. This establishes their identity (xxxvi, 6.) As stated in the preceding chapter, the epinyctis is also the “benat noctis,” i. e. “filia noctis” of the Arabians. Marcus Aurelius Severinus, therefore, is mistaken in distinguishing between the epinyctis and the benat noctis. Ingrassius admits their identity.
Fracastorius gives the following account of this affection: “Si inflammata et accensa sit cholera, pustulam illam facit, quæ ἐπινυκτις vocatur, quod sæpissime noctu nascatur, Arabes Essere appellant.” (De Morb. Cont. ii, 15.) Both Lorry and Rayer confess themselves unable to determine what the epinyctis of the ancients was. It would appear to have been some peculiar species of eczema, now extinct. It must have been a more formidable disease than the nettle-rash, which certain modern authorities have taken for the epinyctis of the ancients.