Dandelion root in water can play a certain amount of heat detoxification (clear the body of heat and toxicity) and other efficacy, but the effective components of the tea drink precipitation is limited, there is no equivalent to the therapeutic efficacy of the drug. Dandelion was first published in the “Xinxiu Materia Medica”, for the chrysanthemum plant dandelion, alkali dandelion, or several species of plants of the same genus, taste bitter, sweet, cold, to the liver, stomach meridian, is commonly used in the clinic as a kind of heat and detoxification medicine, with the effect of clearing heat and detoxification, elimination of swellings and dissipation of knots, diuretic and diaphoretic (to improve the urinary dribbling and urinary volume of the problem of incomplete and incomprehensible). Because dandelion is used as a whole herb, including roots, stems, and leaves, using dandelion root in water alone can also be effective in clearing heat and removing toxins. It should be noted that too much dandelion can lead to slow diarrhea. The contraindications of dandelion are not clear. Tea drink can play a limited medicinal effect, can not replace the drug treatment of disease, discomfort should be timely medical treatment, under the guidance of the doctor to choose the drug treatment, not self-medication.