Herbal medicine is constantly absorbs an enormous flow of information that enriches any science, any medical method. This is the normal course of events. Past experience is enriched with new data. Current humanity overestimates its scientific value. Turning to virtual worlds, detachment from reality, people often forget about themselves as the primary material, about limited and very specific features of the body – that is the key to longevity and health. One of the trends in modern herbal medicine is the study of experience in treating diseases of the various medical schools: Tibetan, Indian, Greek and others (each nation has its own medical tradition). Scientists conducted experimental and clinical validation of the data after the expert and statistical analysis of ancient recipes. Pharmacognosy studies the chemical composition of medicinal plants and products of primary processing. If in the old days, the feasibility of using those or other plants was determined on the basis of empirical experience, with the development of chemistry and biochemistry became possible to take a scientific basis. Isolation of biologically active substances formed the basis for the production of herbal remedies. Phytopharmacology is the most important scientific component of herbal medicine, which studies the interaction of plants with living organisms. People are not in vain surrounds himself with plants - planting trees in the yards, put flower pots on the windowsill. It is known that some plants are beneficial to the psyche, the vision, functions of internal organs and on health in general. Aromatherapy is based on the effect of chemical compounds, which are allocated by plants. The principles of herbal medicine, treatment algorithms are based on integration of knowledge about diseases, plants and the experience of its using. Isolated violations do not happen in the body. Any illness is a set of changes. Many modern pills include several components, which result in greater efficiency. Herbal medicine is a striking example of an integrated approach - people very intimately on a subtle biochemical level is associated with nature. Plants are much closer to the human body on the chemical composition than synthetic drugs. In the course of evolution man adapted to the assimilation of natural chemical compounds, so they have a mild physiological effect. There are substances necessary for the treatment of various diseases in nature. Based on practical experience, herbal medicine can help each patient for any illness. Treatment with plants occupies an important place in therapy of functional disorders, chronic relapsing disease therapeutic profile, dermatomes, and diseases of the nervous, immune and endocrine systems, urogenital, musculoskeletal system. Medicinal plants are essential in the treatment of cancer.