Infusion of borage flowers provides soothing, emollient and expectorant action, so it is used in respiratory catarrh, gastritis, inflammation of the mucous membranes. By the presence of potassium nitrate, this infusion of borage flower heads works well as a diuretic (increases the elimination of urine). Borage also has interesting properties against hangover. Borage is a diuretic, diaphoretic, depurative. These three principles are the spring that contribute positively in states of dermatitis, eczema, herpes and other skin diseases.