Gargles are aqueous solutions containing antiseptics, antibiotics, and anesthetics. They are used for treating infections of pharynx and nasopharynx by forcing the air from lungs through the gargle that is held in the throat. Gargles must be diluted with water prior to use. They are generally dispensed in concentrated form and are pleasantly flavored and medicated. Many mouthwashes are used as gargles, either as such or diluted with purified warm water.