1, the efficacy of Radix Isatidis: Radix Isatidis is bitter in taste and cold in nature, and has the effects of clearing away heat and toxic materials, cooling blood and removing spots, and relieving sore throat. It is mainly used for treating fever such as fever, headache, sore throat, macula, mumps, carbuncle, sore and toxin. Isatis indigotica has a broad spectrum of antibacterial activities in vitro (including Shigella dysenteriae, Salmonella, hemolytic streptococcus), and is a Chinese herbal medicine with antibacterial, anti-inflammatory, analgesic and antipyretic effects.

2. Radix Isatidis also contains a variety of antiviral substances, which have strong inhibitory and killing effects on cold virus, mumps virus, hepatitis virus, meningitis virus, etc. Radix Isatidis is compatible with Rhizoma Osmundae, Flos Lonicerae and Flos Chrysanthemi Indici, and is used to treat some infectious diseases and febrile diseases.