cough drops 还有刚听同事说墨西哥人的偏方: 棉花糖 Herbs high in mucilage, such as marshmallow, are often helpful for relief of coughs and irritated throats. Herbs high in mucilage, such as slippery elm, mallow (Malvia sylvestris), and , are often helpful for symptomatic relief of coughs and irritated throats.