Dandelion and hawthorn together with water can not be drunk every day, because dandelion cold, if you drink every day may lead to diarrhea, abdominal pain and other uncomfortable symptoms. Dandelion, cold in nature, bitter and sweet in taste, belongs to the liver meridian, stomach meridian. It has the effect of clearing away heat and detoxification (removing heat and toxicity from the body), subduing swellings and dispersing lumps, and inducing diuresis and drenching. It is mainly used in treating carbuncle and furuncle (a kind of skin disease, referring to severe furuncle), heat drenching and astringent pain (burning and stinging pain during urination, accompanied by frequent urination and urgency, and discomfort of traction in the abdomen), and damp-heat jaundice. Hawthorn, slightly warm in nature, sour and sweet in taste, belongs to spleen meridian, stomach meridian and liver meridian. It has the effects of eliminating food stagnation (digesting stagnant food), promoting circulation of Qi and dispersing blood stasis. It is mainly used for treating dietary stagnation, diarrhea and abdominal pain, hernia pain and dysmenorrhea. Dandelion is cold in nature and should not be used by people with a cold constitution to avoid diarrhea, abdominal pain and other symptoms. Pregnant women should not use dandelion too much to avoid the coldness of dandelion adversely affecting the fetus. Hawthorn is acidic in nature and can promote secretion of gastric juice. People with weak spleen and stomach without accumulation and stagnation should use it cautiously to avoid aggravating stomach discomfort after taking it. It is recommended to drink dandelion and hawthorn in water under the guidance of a doctor to avoid adverse reactions.