This sling refers to intravenous fluids. Having cervical laser surgery does not necessarily require intravenous fluid therapy, either oral antibiotics to prevent infection or intravenous antibiotics to prevent infection, which usually takes 3-5 days. Cervical laser surgery coagulates the local tissues through the heat generated by the laser, thus providing treatment for diseases such as cervicitis, cervical erosion and cervical lesions. Since the vagina is connected to the outside world, it is recommended to apply antibiotics to prevent infection after cervical laser surgery, either orally or by intravenous infusion for 3-5 days. At the same time, patients should pay attention to keep the vulva clean and hygienic, do not eat spicy and stimulating food, pay attention to rest, 1 month after the operation should be prohibited from sexual intercourse, but also pay attention to observe the vaginal bleeding, abdominal pain and other symptoms.