Homeopathic medicine, which has been in use since the 18th Century, is the use of natural materials in very minute dilutions that trigger a response in the body based on the principle of "like treats like". One example is the use of Rhus Toxicodendron, which is derived from poison ivy. The material, when administered in undiluted form, will cause itching, redness and burning. A homeopathic dilution is used to reduce inflammation, pain, swelling, burning and itching.
