These are something hotter than the natural temper of a man.
Use. Their use for such whose stomachs are filled with moisture, because their faculty is too hot and dry; they take away obstructions or stoppings, open the pores of the skin, but not in the same manner that such do as are hot in the first degree, for they do it without force, by a gentle heat, concocting, and expelling the humours, by strengthening and helping nature in the work; but these cut tough humours, and scatter them by their own force and power when nature cannot.
Of Medicines hot in the third degree.
Those which attain the third degree of heat, have the same faculties with those before mentioned; but as they are hotter, so are they more powerful in their operations, for they are so powerful in heating and cutting, that if unadvisedly given they cause fevers. Use. Their use is to cut tough and compacted humours, to provoke sweat abundantly; hence it comes to pass they all of them resist poison.
Of Medicines hot in the fourth degree.
Those medicines obtain the highest degree of heat, which are so hot that they burn the body of a man, being outwardly applied to it, and cause inflammations, or raise blisters, as Crowfoot, Mustard-seed, Onions, &c. Of these more hereafter.
Of cooling Medicines.
Physicians have also observed four degrees of coldness in medicines, which I shall briefly treat of in order.
Of Medicines cold in the first degree.
Those medicines which are least cold of all, obtain the first degree of coldness; and I beseech you take notice of this, that seeing our bodies are nourished by heat, and we live by heat, therefore no cold medicines are friendly to the body, but what good they do our bodies, they do it by removing an unnatural heat, or the body heated above its natural temper.