According to the website, Banlangen Granule is a kind of Chinese patent medicine, which has the functions of clearing away heat and toxic materials, resisting colds and viruses, and belongs to the category of medical insurance reimbursement. Radix Isatidis is mainly used to treat exogenous fever, early onset of epidemic febrile disease, sore throat, epidemic febrile rash, parotitis, erysipelas and carbuncle.