The human body has within and surrounding it an electrical network. When we experience health, this electrical network is balanced and fully connected. When something in our life or environment threatens that balance, the electrical system responds by either short-circuiting or overloading. That imbalance in the electrical system immediately impacts the central nervous system. The body then goes into high gear in an effort to correct the imbalance. If our body does not succeed, we physically manifest the imbalance. We get a cold or a headache, or our allergy pops up again or another migraine belts us. Or we get back pain, or our neck goes out again. Or we become seriously ill.
Flower essences work directly with both the electrical and the central nervous systems. By taking the correct essences, we immediately balance the electrical system, stabilize the nervous system and stop the domino effect that leads to illness.If we don't take the essences and wind up getting sick, we can still take the essence(s) that will then stabilize and balance the electrical and nervous systems while the body gets on with the business of fighting off the problem. By assisting this process, flower essences drastically reduce our recovery time. In short, by using the essences, we are not asking our our body to pull double duty*to do the work to heal us systemically and rebalance our electrical and central nervous systems.
(from http://www.perelandra-ltd.com/About_Flower_Essences_W44.cfm)