MODEL RELEASED. Homoeopathy. Elderly woman taking a pill from a container of homoeopathic medicine. Homoeopathy is based on the principle that a disease is best treated by taking tiny doses of a drug that causes the same symptoms as the disease. A drug is dissolved in water to make a preparation, which is then diluted. The more dilute the preparation, the more potent its effect. Conventional medicine does not support these views.