The root of Nelumbo nucifera has the efficacy of strengthening the heart and diuretic, clearing heat and removing toxins, stopping bleeding and cooling the blood. The root of Nelumbo nucifera is cold in nature, bitter and slightly sweet in taste, with a small poison. Attributed to the lung, heart meridian. It has the effect of strengthening the heart and diuretic, clearing heat and removing toxins, stopping bleeding and cooling blood. Therefore, it can treat edema, mouth and tongue sores, sore throat, swollen gums, skin abscesses, etc. It can also treat hemoptysis, hematemesis, heart failure and other conditions. It should be noted that the root of Nelumbo nucifera is forbidden to pregnant women, and if overdose will appear nausea, vomiting, headache, dizziness, as well as numbness of the limbs, cold hands and feet, and even panic, etc., and in serious cases, even death. Taking the root of Nelumbo nucifera must be strictly in accordance with the dose prescribed by the doctor, can not be taken privately, and after the use of close observation, in order to ensure safety.