Dr. Edward Bach, a physician in England, spent the latter portion of his life (the 1930's) studying flower essences. He was interested in how the state of mind could influence natural resistance to disease. He developed 38 Bach flower remedies which are said to influence the psychoemotional state.
In alternative veterinary medicine, these flower essences are used singly or in combination (e.g., Rescue Remedy) to treat various behavior problems including anxiety, or when the animal's mental condition needs to be changed. The essences are generally given by placing several drops of the essence into the drinking water.