Fresh dandelion should be infused after a concoction process of removing impurities, washing, cutting and drying in the sun. Dandelion is the dried whole herb of dandelion, alkali dandelion or several species of the same genus in the family of Asteraceae. Taste bitter, sweet, cold. It belongs to the liver and stomach meridians. It can clear away heat and toxins (removing heat and toxicity from the body), reduce swelling and dissipate lumps, and diuretic and diaphoretic (improving the problem of dribbling urine, and the problem of small amount of urine not passing through the body). Dandelion can be used for furuncles (mostly occurring on the limbs or face sores, the shape of the small root base of the deep, as hard as nails), swelling and poisoning, mammary carbuncle, scrofula (mainly refers to the cervical lymph nodes tuberculosis), redness of the eyes, sore throat, intestinal carbuncle (carbuncles occurring in the internal organs of the intestinal organs, with fever, pain in the right abdomen, and can be touched the performance of the masses), damp-heat jaundice, heat drenching (urine burning stinging pain is obvious, accompanied by urinary frequency, urgency, abdominal pulling discomfort), astringent pain and so on. Dandelion is also used as an antidepressant in the form of dandelion. The efficacy of dandelion water alone is limited, if you need to use drugs, should be guided by a Chinese medicine practitioner to identify the evidence, not to use on their own, so as to avoid delaying the condition of the medicine is not the right evidence.