Homeopathy is a system of alternative medicine that was developed in the late 18th century by German physician Samuel Hahnemann. It is based on the principle of "like cures like," which states that a substance that causes symptoms in a healthy person can be used in a highly diluted form to treat similar symptoms in a sick person.
Homeopathic remedies are made by diluting a substance in water or alcohol, often to the point where no molecule of the original substance is believed to remain. The process of dilution is thought to increase the remedy's potency, and it is said to stimulate the body's natural healing process. The remedies are usually administered in the form of pills, drops, or pellets, and they are designed to treat the individual, not the disease.