Rhases, as usual, treats fully of soda and all its varieties. When of an inflammatory nature, he recommends bleeding, purging, and the application of vinegar and rose-oil to the head. When connected with bile, he directs first vomiting by drinking tepid water, and then to take purgatives, and afterwards wormwood. When the disease is protracted, he approves of opening the temporal vessels, and of using sternutatories. When it arises from a blow, he recommends bleeding, and purging with colocynth, &c. He states that Ruffus recommended the affusion of cold water, or of oils congealed in snow, over the head. In obstinate cases, he directs the use of the actual cautery.

SECT. V.—ON CEPHALÆA AND HEMICRANIA.

Each of these affections is a permanent pain of the head, liable to be increased by noises, cries, a brilliant light, drinking of wine, and strong-smelling things which fill the head. Some feel as if the whole head were struck, and some as if one half, in which case the complaint is called hemicrania. When the affection is seated within the skull, the pain extends to the roots of the eyes, and when externally it spreads around the skull. Pain then, accompanied with heaviness, indicates plethora; if with pungency, acrimony of the humours or spirits; if with throbbing, inflammation; if with tightness and without heaviness and throbbing, a fulness of a thin and flatulent spirit (gas?); but if it be attended with throbbing, it is indicative of inflammation of a membrane; if with heaviness, of a fulness contained within the membrane. If the putrid humour acquire heat, the headach will be attended with fever; and, in general, those in whom headach proceeds from inflammation have fever. When, therefore, the whole body is in a plethoric state, we must bleed (attention being paid to the strength), and use the more acrid clysters. Should there still appear to be a fulness of blood, we must open the veins of the nose, and endeavour to evacuate thereby to a sufficient amount. We must then give hiera sharpened with vinegar, and use masticatories, or medicines for evacuating the phlegm by the mouth; also procure evacuations from the nose by means of errhines, such as the juice of elaterium, which may be poured in with milk; or the elaterium may be snuffed up dry, or else the juice of sow-bread or of leeks. The following are compound medicines:

An errhine for chronic headachs, ophthalmy, and epilepsy. Of gith (nigella sativa), dr. viij; of sal ammoniac, dr. iv; of elaterium, dr. iv; pound and mix with Sicyonian oil, or that of iris, or of privet, so as to have the thickness of cerate, and apply to the nostrils.

An errhine to be snuffed up. Of dried sow bread, dr. viij.; of red nitre, dr. iv; or if, instead of the nitre, you will use elaterium, it will be still better. Snuff it through a reed. In more chronic cases use epithemes to the head and unguents, as the following:

An epitheme for cephalæa. Of the ointment of iris, of hog’s fennel and castor, of each, dr. j; of bay-berries, dr. ij; of the tops of rue, dr. iv; mix with rose-cerate, and having shaved the head, apply to the whole of it. A certain woman, by using the following application in cases of hemicrania, acquired wonderful celebrity: Having cut down the green root of the wild cucumber into small pieces, she boiled it and wormwood in oil and water until they were softened; and with the warm oil and water she fomented moderately the affected part; and, pounding the root and the wormwood, she made a cataplasm of them. And with this application she cured cases of hemicrania, both with fever and without. When a strong paroxysm takes place, so that the pain is insupportable, use paregoric and alterative applications like the following:

An unguent for cephalæa. Of the juice of hog’s fennel, dr. xvj; of the juice of poppy, of anise, of henbane, of saffron, of myrrh, of scammony, of each, dr. ij. Add to vinegar and make trochisks. When using it, anoint those who have pain of the head from thick humours or a flatulent spirit with it, along with vinegar or oxycrate. We must, likewise, use a dropax and sinapism, and the trochisk from thapsia. That, too, from writing ink is much approved of for the same cause, and is to be used, as will be described in the Book on Compound Medicines.

The following one is possessed of wonderful efficacy for hemicrania proceeding from a thick and viscid humour: Of euphorbium, one part; of castor, an equal quantity; mixing with water, insert into the ear of the affected side, and order the patient to go into a bath, and, when he has remained a short time, take it out, and bathe as usual. Thus it is of tried efficacy. It will not be improper also to add them to oil, and inject into the ear. The application described for ischiatics is likewise a successful remedy for chronic headach and hemicrania.

For chronic hemicrania. Of garlic, dr. iv; of wax, dr. ij; of old axunge, dr. ij; of cantharides, dr. ij. Apply this in the evening, and having allowed it to remain all night, break the blister in the morning, and cure with the plaster called panygrus.—Another: Of bay-berries, stripped of their skins, dr. ij; of the leaves of rue, dr. ij; of mustard, dr. j; moisten with water, and apply. It is most beneficial to those whose complaints arise from cold causes, so that frequently, when applied before going into the bath, it immediately cures the affection, and after the bath they become perfectly well.—Another: Of Sabine oil, lb. j; of wax, oz. iij; of euphorbium, oz. j; with this anoint the half of the forehead, namely, along the temporal muscle. If the cold is not great, pound an equal quantity of galls and crocomagma with wine, and anoint. In cases from hot fumes or humours, do not use the applications with euphorbium.