Yi Qing Granules, mainly composed of Scutellaria Baicalensis, Radix Scutellariae Sinensis and Rhubarb, is a proprietary Chinese medicine. Because Scutellaria baicalensis in the formula is good at clearing damp heat in the upper jiao, Huang Lian clears heat in the middle jiao, and Da Huang draws heat downward, which are all good at clearing heat and dipping fire in the three jiao. Therefore, it has the effect of clearing heat, dipping fire and detoxifying the toxin. It is mainly used clinically for fire and blood heat in the body, body heat and irritability, red eyes and mouth sores, sore throat, swelling, constipation, such as pharyngitis, tonsillitis, gingivitis or symptoms of fire infection in the eyes and nose. For mouth ulcers or middle Jiao body heat irritability, bad breath, gum inflammation infection, as well as the clinical symptoms of frequent urination, yellow urination and constipation that appear in the lower Jiao with fire, all have good regulating and therapeutic effects. Therefore, when the body has the manifestation of fire and heat in the three jiao, it can be treated by Yiqing granules.