260. Sitis: i.e. thirst, and these are the things that stop the thirst, white sugar in one part vinegar and two parts water, to be held in the mouth, and tisane of barley in which is boiled violet, daisy, orpine, houseleek, seed of water betony, and the likes; there also serve against the thirst, to mix frequently in the mouth gum Arabic, a diuretic oximel, and cold water, or to drink hot water; no cold water should be drunk, because cold water increases the thirst, while hot water reduces it, as Avicenna says.