There is no such thing as which three people should not eat Luo Han Guo. Luo Han Guo in the Chinese Pharmacopoeia does not specify contraindications, generally as long as the doctor’s instructions to take medication, there will be no obvious discomfort. Luo Han Guo belongs to a kind of traditional Chinese medicine, in the clinical medicinal use of the choice is usually the cucurbit plant Luo Han Guo dry fruit. Because the drug can clinically clear heat and moisten the lungs (clearing heat to moisturize the lungs), and benefit the throat and open the voice, it is mainly used to treat symptoms such as cough, yellow and thick sputum, sore throat and hoarseness caused by blazing heat in the lungs. In addition, Luo Han Guo can also moisten the intestines and laxatives, and can also be used to treat constipation caused by the dryness of the large intestine and other diseases. However, the contraindications and side effects of the drug are not clear. Patients are advised to seek prompt medical attention if they feel unwell to avoid delays.