Homeopathy has become the focus of increasing interest and use as a complementary and alternative treatment for both human and animal disease. However, from the point of view of academic medicine, this type of therapy is controversial. The use of highly diluted remedies cannot be reconciled with the scientific theories on which the current understanding of disease and its treatment is based, and clinical research in the field is considered to be neither extensive enough nor of a high enough standard to determine whether homeopathic treatments are clinically effective. Review articles are the summary of current state of understanding on a particular research topic.Homeopathy is a medical system based on the belief that the body can cure itself. Those who practice it use tiny amounts of natural substances, like plants and minerals. They believe these stimulate the healing process.It was developed in the late 1700s in Germany. It’s common in many European countries, but it’s not quite as popular in the United States.A basic belief behind homeopathy is “like cures like.” In other words, something that brings on symptoms in a healthy person can -- in a very small dose -- treat an illness with similar symptoms. This is meant to trigger the body’s natural defenses.