Han Sen Si Mo Tang can be effective in just one day. The main feature of this medicine is that it can smooth the flow of Qi and reduce rebellion, eliminate accumulation and relieve pain, which can be used clinically to treat a number of related diseases, mostly in the gastrointestinal tract, such as abdominal distension, abdominal pain, and indigestion of food and dislike of eating, and diarrhea and constipation, which can be treated, and mainly in children. For the elderly, Hansen Sifu Tang can also be used to treat constipation and indigestion, which are unique to the elderly, with significant results. Many patients who have had abdominal surgery, or who have been bedridden or weak for a long time, can use this medicine to promote gastrointestinal peristalsis, which is very effective in improving the function of the intestines. During the application of this medicine, it must be noted that pregnant women should not take it orally, and patients with obvious intestinal diseases, such as intestinal obstruction and malignant tumors, which are also not suitable for the application of Hansen’s Four Mills Tang for treatment.