After vaginally placing the interferon gel, it is recommended to urinate after half an hour so that the gel is not discharged, which will affect the effect of drug therapy. After vaginally placing interferon patients at least half an hour after urinating or get up and move around, if the plugging of the drug after premature urination, standing, activity, the drug may be under the effect of gravity or the role of increased abdominal pressure quickly discharged out of the body. It is recommended that patients must choose to use before bedtime, empty the bowels before use, drink less water at night, and do not get up for a short time. The patient takes a natural lying position, buttocks elevated, the propeller is gently sent deep into the vagina to the fornix, the propeller tube pins will be injected into the gel all the way, then remove the propeller and discard it. If the patient has special circumstances that necessitate going to the bathroom within an hour of putting the medicine in, try to reduce abdominal pressure to reduce the chances of the medicine being discharged. With interferon gel precautions: interferon has a history of allergy to people with caution, menstruation period to stop using the drug, the use of drugs during the prohibition of sexual life and sitz bath. During the use of the drug if itching discomfort, lower abdominal swelling, increased secretion and other discomforts need to consult a doctor, under the guidance of the doctor’s treatment.