- The sweet, mild but pleasantly bitterish aerial portions of violet support the lungs, stomach, liver, and the heart. The demulcent, expectorant, alterative, fever-relief, cleansing, vulnerary, and muscular contraction reliever properties of the flower have lead to its health use in cases of a dry cough and a sore throat. Saponins, phenolic glycosides, and mucilage have been identified through biochemical analysis. – Violet can be used as a syrup for sore throat, dryness of the upper-respirator