The swellings in some grew hard, and they applied violent drawing-plaisters or poultices to break them, and if these did not do they cut and scarified them in a terrible manner. In some those swellings were made hard partly by the force of the distemper and partly by their being too violently drawn, and were so hard that no instrument could cut them, and then they burnt them with caustics, so that many died raving mad with the torment, and some in the very operation.