The herb of bird's-eye mountaineer has a number of medicinal properties, thanks to which internal and external bleeding, helminthic diseases, neurasthenia, headache, infertility, menstrual cycle disorders, kidney diseases, metabolic disorders can be treated. obesity, gum disease, gout, arthritis and rheumatism. Also, this plant is used externally in the treatment of various skin diseases: wounds, ulcers, boils, burns, dermatitis, acne, as well as bruises and tumors. Bird's-eye heat relieves fever and lowers blood pressure, it is used together with other drugs for the treatment of pulmonary tuberculosis. It helps to get rid of cramps, hemorrhoids, colds, whooping cough and lung diseases, and its anti-inflammatory properties help with such ailments as inflammation of the stomach and intestines. It is also recommended to use fennel in the treatment of gastric and duodenal ulcers, malaria, diarrhea, dysentery, and urolithiasis. Until recently, this herb was used as a dye. At the moment it is used as a valuable fodder and food plant. Various soups, salads and other dishes are made from it. The most widespread and diverse application of bird's-eye mountaineer in medicine. Its hemostatic, healing, anti-inflammatory, antimicrobial and many other useful properties have been found in it. The bird's wort herb is rich in vitamins K and E, as well as avicularin, ascorbic and silicic acids, carotene, bitter substances, fat, sugars, resins and tannins.