Note, thin167 food is the remedy that avails most in this sickness, e.g. milk, according to Averroes. The best milk here is firstly breast milk, then ass's milk, then goat's milk, and then cow's milk, and it were better the butter be taken off it. When putrid fever is joined to hectic, Galen says, milk is no use then, for it is easy to corrupt milk, and sperm, and blood.168 He (Galen) says, indeed, sperm is not out of the vessels an hour, or a moment, till it is corrupted.