Homeopathy, also known as homeopathic medicine seeks to stimulate the body's ability to heal itself by giving very small doses of highly diluted substances . It is a whole medical system that originated in Europe that dilutes substances from larger doses that would produce illness or symptoms (an approach called "like cures like").. Homeopathy is used for wellness and prevention and to treat many diseases and conditions. There are two main therapeutic principles or methods that were developed by German physician Samuel Christian Hahnemann at the end of the 18th century . He theorized that if a substance could cause disease symptoms in a healthy person, small amounts could cure a sick person who had similar symptoms.

The principle of dilutions (or "law of minimum dose") states that the lower the dose of the medication, the greater its effectiveness. In homeopathy, substances are diluted in a stepwise fashion and shaken vigorously between each dilution. This process, referred to as "potentization," is believed to transmit some form of information or energy from the original substance to the final diluted remedy. Most homeopathic remedies are so dilute that no molecules of the healing substance remain; however, in homeopathy, it is believed that the substance has left its imprint or "essence," which stimulates the body to heal itself (this theory is called the "memory of water").

Homeopaths treat people based on genetic and personal health history, body type, and current physical, emotional, and mental symptoms Homeopathic remedies are derived from natural substances that come from plants, minerals, or animals. Common remedies include red onion, arnica (mountain herb), and stinging nettle plant.