Homeopathy is an alternative medical practice that uses extremely dilute amounts of natural substances to treat ailments. It was founded in the late 18th century and works on the principle that "like cures like," meaning a substance that causes symptoms can be used in tiny doses to treat similar symptoms. Research on its effectiveness is mixed, with some studies supporting it and others finding it no better than a placebo. While homeopathic medicines are widely available, most medical experts remain skeptical of homeopathy due to the lack of active ingredients in highly diluted preparations and the lack of scientific evidence that it works. The Philippines has a long tradition of herbal medicine that is considered a form of homeopathy.