Dandelion is mainly used for clearing heat and removing toxins (removing heat and toxins from the body), subduing swellings, dispersing lumps, inducing diuresis and clearing diuresis, and can be used in accordance with the doctor’s instructions. Dandelion is bitter, sweet, cold in nature, belonging to the liver, stomach meridian, can be taken internally, but also can be crushed and applied externally. Dandelion has the efficacy of clearing away heat and detoxification, eliminating swelling and dispersing knots, inducing dampness and clearing away drenching, treating carbuncle furuncle (a kind of skin disease, referring to the degree of serious furuncle), feverish drenching (burning and stinging pain in urination, accompanied by urinary frequency and urgency, abdominal traction and discomfort), astringent pain, carbuncle, and jaundice with dampness-heat and jaundice, etc. The adverse effects of dandelion are not clear. Dandelion adverse reactions are not clear, excessive internal dosage can lead to slow diarrhea. Externally, the fresh product is used in appropriate quantities, pounded or decoction of fumigation of the affected area. Dandelion specific medication should be carried out under the guidance of a specialist, not unauthorized use of medication.