Herbal medicine, herbal medicine, or phytotherapy is a topic in botany that involves the use of plants for medicinal purposes or as a dietary supplement. Plants have been the basis of medicinal therapy since prehistoric times, and herbal medicine or herbal medicine is still widely practiced to this day. Modern medicine uses many compounds derived from plants as an essential raw material in the pharmaceutical industry. Although herbal medicine may apply modern standards to test the effectiveness of herbs and medicines derived from natural sources, there are few clinical trials and high quality standards for purity or dosage of use. Sometimes the range of herbal medicine is extended to include fungal products and honey, as well as minerals, lignans, and certain parts of animals. Medicinal herbs are useful for the human body because they treat some diseases or health problems such as the sage plant and its usefulness in treating abdominal pain and chamomile and its usefulness in treating cold and cough diseases.