When you come down with a cold or flu and suffer from a sore throat, all you want is relief. Get that relief from NatraBio's Cough Syrup Expectorant Plus. It's a natural homeopathic medicine that provides relief from cough, bronchial cough, congestion and sore, irritated throats. Liquid Cough Syrup provides temporary relief of coughs due to colds, flu, allergies and irritants such as smoke or pollution. Get relief today. Try homeopathic Cough Syrup.