According to WEBMD.com:
What is homeopathy?
Homeopathy, or homeopathic medicine, is a medical philosophy and practice based on the idea that the body has the ability to heal itself. Homeopathy was founded in the late 1700s in Germany and has been widely practiced throughout Europe and India. Homeopathic medicine views symptoms of illness as normal responses of the body as it attempts to regain health.
Homeopathy is based on the idea that "like cures like." That is, if a substance causes a symptom in a healthy person, giving the person a very small amount of the same substance may cure the illness. In theory, a homeopathic dose enhances the body's normal healing and self-regulatory processes.
A homeopathic health practitioner (homeopath) uses pills or liquid mixtures (solutions) containing only a little of an active ingredient (usually a plant or mineral) for treatment of disease. These are known as highly diluted or "potentiated" substances. There is some evidence to show that homeopathic medicines may have helpful effects.
Is homeopathy safe? Homeopathic remedies have been regulated in the United States since 1938 and are considered to be safe. Unfortunately, the results of recent court cases against homeopathy in the USA may be an omen.
Some critics of homeopathy believe that there is so little active substance in a solution that any benefits from treatment are likely not because of the substance but because you are thinking it is effective (placebo effect).
It is important to tell your medical doctor if you decide to use homeopathic remedies. He or she should have full knowledge of your health to help you make wise decisions about where to purchase homeopathic dilutions and what homeopathic practitioner to see. Homeopathic remedies should not replace conventional treatments for serious health concerns.
You can buy some homeopathic medicines at health food stores without a doctor's prescription. But preparations from different suppliers and practitioners may vary greatly in quality, potency, and price.
Always tell your doctor if you are using an alternative therapy or if you are thinking about combining an alternative therapy with your conventional medical treatment. It may not be safe to forgo your conventional medical treatment and rely only on an alternative therapy.
NOTE: single bottle prices do not include shipping and handling fees for the Continental U.S.A., Hawaii and International orders.