Furunculosis is often wrongly attributed to dietetic errors or high living, but it is now known to be of germ origin due to the action of the Staphylococcus pyogenes and other micro-organisms which penetrate the skin, through abrasions or otherwise, so that the supposed influence of diet is only remote, in that poor living tends to lower the general vitality and make the body more susceptible to any form of inoculation. Special dietetic treatment becomes necessary only in debilitated cases, such as complicate anaemia, diabetes, or convalescence from protracted infectious diseases, and the rules for it will be found under those headings.