Homeopathy

“Like cures like” was the rallying cry of the homeopaths, who believed that the human body knew how to best cure itself. If one’s body reacted to something in a certain way, it was because it was fighting off the effects; stimulating it to create a similar response would make the body heal faster.
However, too much of a deadly substance could kill the patient, so homeopaths made sure to dilute the various materials used in treatment by factors of 10 or 100. Critics of homeopathy often stated at that point there was no trace of the substances left, which to them proved that homeopathy was mere “quackery.”