Irritable Bowel Syndrome (IBS) is the most common functional gastrointestinal disorder, characterized primarily by abdominal pain accompanied by changes in bowel habits and stool characteristics. The abdominal pain is related to bowel movements, and typically eases after defecation. This condition is a functional disorder, meaning that it does not exhibit any organic problems; that is, medical examinations do not reveal any physical abnormalities. It manifests merely as a series of symptoms. Therefore, what type of infusion should be used for this disease? Anti-inflammatory or rehydration? Infusions are generally ineffective. Usually, oral probiotics are used to adjust the intestinal flora to improve symptoms. Alternatively, oral traditional Chinese medicine can also be administered to alleviate the symptoms.