Bittering tea is not much terrible, its adverse effects are not clear, there are wind clearing and heat, bright eyes and the efficacy of the body. Bittering tea is the name of the young leaves of the holly plant berry or big leaf holly, etc. It is cold in nature, sweet and bitter in taste, and belongs to the liver, lung and stomach meridians. It has the efficacy of dispersing wind and clearing heat, brightening the eyes and promoting the production of fluids. It can be used for the treatment of wind-heat headache, toothache, eye redness, deafness, fever and thirst, diarrhea, dysentery. It can also be used to treat stomatitis, decoction with water and internal use; water, fire burns, mastitis at the beginning of the research oil mixing external coating; traumatic bleeding, research finely powdered compress. Contraindications of Bitter Tea are bad stomach, menstruating women should not drink, spleen and stomach cold (spleen and stomach weak cold) people should not be served. Precautions are not yet clear. The specific use of the drug should be under the guidance of a professional physician.