How long to drink Huanglian and Cinnamon is a decision that needs to be made according to the patient’s condition, physique, etc. and cannot be generalized. It is recommended to use under the guidance of a doctor. Huang Lian is used for treating damp-heat plumpness (stomach distension and discomfort), vomiting and acid swallowing (swallowing the acid in the stomach that rushes up to the oropharynx), damp-heat diarrhea (diarrhea caused by feeling damp-heat evil), high fever and dizziness, disturbed sleeplessness (disturbed heat in the heart, insomnia), blood-heat epistaxis (vomiting of blood and nosebleed due to blood-heat), etc. It is not recommended for people with cold spleen and cold stomach. Not to be used if there is deficiency of cold in the spleen and stomach. Caution should be exercised when there is deficiency of Yin and fluid. Cinnamon is used for kidney yang deficiency, impotence and uterine cold, dizziness, cold pain in the heart and abdomen, dysmenorrhea, yin gangrene (a general term for a class of slow-acting yin sores and ulcers), and rheumatism (multiple abscesses originating in the deep parts of the muscles), etc. It is contraindicated in people with yin deficiency and fire. It is not recommended for people with yin deficiency and fire exuberance, and should be used with caution for people with bleeding tendency. Use with caution in pregnant women. It is not suitable to be used in conjunction with Red Stone Fat. If medication is needed, it should be identified by a doctor and standardized treatment should be followed.