Homeopathy is a scientific system of healing based on a principle described by writers as early as Hippocrates which observes that a substance can often cure symptoms which are similar to symptoms which it can produce. A simple example might be a case of arthritis which is hot, red and edematous at the joints with a stinging sort of pain. These symptoms are very similar to a bee sting, and might be treated and helped by a homeopathic dose of Apis (bee venom). The doses of homeopathic remedies are so minute that there are no harmful side effects, and yet they are strong enough to present a healing stimulus to the body so that it can begin a return to a healthy, balanced state.