Antibiotics should be discontinued for about 3~7 days after small bowel regurgitation, and the duration of the medication can be extended if the infection is serious. In order to prevent secondary infection after small bowel reentry surgery, it is generally recommended to insist on taking antibiotics, such as amoxicillin, cefaclor, levofloxacin, etc., about 3~7 days of medication, such as no obvious manifestations of infection, can be discontinued under the guidance of the doctor, to avoid unauthorized discontinuation of the medication to affect the recovery of the operation, causing adverse reactions. If the infection is more serious after small bowel regurgitation, the time of taking antibiotics can be appropriately extended until the body inflammatory cells are completely cleared, and the white blood cells return to the normal level before discontinuing, otherwise, the degree of infection will be significantly aggravated, and it is easy to affect the postoperative recovery. It is recommended that patients do regular observation after small bowel reentry, such as fever, wound redness, swelling, pain and other obvious symptoms of infection, need to consult a doctor in a timely manner, and under the guidance of a professional physician targeted treatment.