Forsythia is a kind of Chinese herbal medicine, whether the Chinese medicine has a hypoglycemic effect on the human body is not exact, patients should not use blindly, so as not to delay the condition. Although the pharmacological research now shows that the whole herb decoction of the herb for staphylococcus aureus, shigella dysentery bacillus, typhoid fever bacillus, etc., inhibitory effect, in animal experiments, the rabbits a large number of gastric gavage for a week, found to have a hypoglycemic effect. However, there is no relevant clinical trials show that it also has a definite hypoglycemic effect on the human body, so it is not recommended that patients blindly use. Hyperglycemia or diabetes patients, under the guidance of a physician, targeted use of metformin, acarbose, insulin and other hypoglycemic drugs, blood glucose control at a stable level, and the use of such hypoglycemic drugs need to comply with the doctor’s instructions, can not be unauthorized use of medication, and can not blindly self-medication to use some of the Chinese herbs to lower the sugar treatment, so as to avoid delaying the condition or cause other side effects.