Some of the suggestions in this book may be helpful or at least have a placebo effect. Beware of the many recipes that include kerosene (coal oil), turpentine, ammonium chloride, lead, lye (sodium hydroxide), strychnine, arsenic, mercury, creosote, sodium phosphate, opium, cocaine and other illegal, poisonous or corrosive items. Many recipes do not specify if it is to be taken internally or topically (on the skin). There is an extreme preoccupation with poultices (applied to the skin, 324 references) and "keeping the bowels open" (1498 references, including related terms)