Leek is a kind of common food, leek boiled water does not have any equivalent to the efficacy of the drug. Leeks are rich in nutrients, eaten in moderation can be supplemented for the body’s required nutrients, has a certain nutritional value. Leek is a common green vegetable, not only contains a large amount of vitamin C, vitamin B1, carotene, carbohydrates, minerals and other nutrients, but also rich in dietary fiber, to a certain extent, can promote gastrointestinal peristalsis, therefore, eat leeks in moderation, the human body needs part of the nutrients can be supplemented. Leeks are more nutritious, but the effective substances of food are limited, and can not achieve the purpose of treatment of disease, therefore, leeks boiled water does not have any efficacy. It is recommended that when discomfort occurs, go to the hospital in a timely manner, by the doctor according to the cause of the targeted treatment, do not blindly self-medication or consumption of prescriptions, so as not to delay the condition.