The main disadvantage of drinking dandelion for a long time is that the performance of dandelion is relatively cold, long-term application of the spleen and stomach cold, so that the decline in appetite, physical weakness, especially women and the elderly, children, frequent application of the immune system can be reduced to appear related to the disease. Drinking dandelion for a long time will also appear allergic reactions, especially patients will be manifested as urticaria, generalized itching, etc., if serious, there will be a decline in immunity, lower blood pressure and so on. Dandelion benefits are still many, should be under the guidance of the doctor, avoid the application of dandelion for the weak. Dandelion can be used to treat gastritis, gastrointestinal bleeding, all kinds of inflammation, and even jaundice and cholecystitis.