Medicinal plant. Sage contains an essential oil whose main ingredients are p-cineole, thujone, pinene, sage, borneol, cedrene. Medicinal sage leaf infusion is used as an astringent, disinfectant and anti-inflammatory agent, especially for the treatment of inflammation of the mouth and upper respiratory tract. Sage is also useful during colds - medicinal sage strengthens the body's natural defenses. In turn, the infusion of medicinal sage leaves is used as an astringent, disinfectant and anti-inflammatory agent, especially for the treatment of inflammation of the mouth and upper respiratory tract.