Ophiopogon belongs to a kind of traditional Chinese medicine, which has the effect of nourishing yin and generating fluids, moisturizing the lungs and clearing the heart. Drinking it in tea has similar effects, but it cannot replace the medication to treat the disease. Maitong is clinically used for the treatment of dry lung cough, cough with deficiency of Yin, paralysis of the throat (pharynx red, swollen and painful, or dry, foreign body sensation, or pharyngeal itching discomfort, difficulty in swallowing), sore throat, fluid injuries, thirst, internal heat and thirst (internal fever accompanied by more food, more drink, more urine and other symptoms), heartburn and insomnia, intestinal dryness, constipation and other illnesses. However, it is not recommended to drink maitake tea for people with cold spleen and stomach (spleen and stomach weakness and cold), maitake tea is slightly cold, and it is easy to aggravate the condition after taking it for people with cold spleen and stomach. In addition to phlegm (water metabolism disorders formed by the pathological products) of dampness and turbidity is not recommended to drink, easy to produce phlegm and dampness. Tea replacement drinks are limited in the precipitation of active ingredients, and cannot replace the drug treatment of disease. The emergence of maladaptation timely consultation, under the guidance of physicians standardized treatment. Maitou tea should also consult a physician before taking.