In 1919, Dr. Bach began working at the London Homeopathic Hospital and learned of the theories and works of the great homeopathic physician, Dr. Samuel Hahnemann.
Dr. Samuel Hahnemann introduced homeopathic remedies in the late 1700s.
Hahnemann (1753-1844) was in conception as revolutionary a reformer of medicine as Paracelsus.
(It is fair to say that these views were published in one of his later works.) In treatment of disease Hahnemann rejected entirely the notion of a vis medicatrix naturae, and was guided by his well-known principle 1 The itch (scabies) is really an affection produced by the presence in the skin of a species of mite (Acarus scabiei), and when this is destroyed or removed the disease is at an end.
In order to select remedies which should fulfil the indication of producing symptoms like those of the disease, Hahnemann made many observations of the action of drugs on healthy persons.