Glycyrrhizin was valued in ancient Arabia and Greece for treating coughs and in China for relieving irritation of the mucous membranes. In modern times, glycyrrhizin has been shown to be a formidable antiviral, fighting herpes, HIV, hepatitis, influenza, encephalitis and pneumonia as well as less known viruses like respiratory syncytial virus, arboviruses, vaccinia virus and vesicular…