Ginkgo has the effect of stopping the belt and shrinking urine, astringent lung (astringent lung qi) fixed wheezing, contraindications are mainly ginkgo raw or boiled food overdose can lead to poisoning, manifested as vomiting, coma, slow reaction to light and other symptoms. Therefore, it is prohibited to eat raw or overdose. Ginkgo is also called white fruit in traditional Chinese medicine, poisonous, sweet, flat, astringent, bitter, belonging to the lung, stomach meridian. Ginkgo is astringent and astringent, can cure asthma and cough, can astringe the lung to stabilize wheezing and resolve phlegm, and used with walnut meat, schizandra, etc., can cure the deficiency of the lung and kidney deficiency of the deficiency asthma. Used with ephedra, it can relieve coughing and wheezing caused by wind-cold. At the same time, ginkgo can be used for frequent urination under the belt, urination, white turbidity (urine turbid as white pulp) and other diseases. Ginkgo’s contraindication is not to eat ginkgo raw or boiled food overdose, ginkgo itself has a certain degree of toxicity, in the clinical symptoms can be manifested as headache, abdominal pain, nausea, loss of appetite, vomiting, and may even cause heart failure, coma and so on. Ginkgo poisoning and the severity of poisoning and age, physical strength and weakness. Therefore, children and the old and weak should be used with caution. Ginkgo, especially the green germ is the most toxic. The outer seed coat and inner layer of the thin skin and heart buds should be removed when using the medicine. Warm reminder: please take Chinese medicine under the guidance of a doctor’s diagnosis, do not take the medicine on your own, so as not to cause adverse reactions.