Nin Jiom herbal cough syrup. Naturally, gently, effectively. That's the best way to soothe a sore throat. Nin Jiom herbal cough syrup provides relief from coughs and sore throats due to colds, too much talking, singing, smoking, and drinking. What's in it? Only honey, herbs, fruits, and flowers. It's the cough syrup that tastes good. Nin Jiom is an expectorant and works off basic Chinese medicine principles.