The povidone suppository and the interferon vaginal suppository are both vaginal suppositories, which are used in different ways for different diseases. The pau d’arco pessary can be placed vaginally every night after washing the vulva, usually one week for a course of treatment. Interferon vaginal suppositories are mainly used for the treatment of cervical erosion and viral infections, the specific use of which should be decided according to the specific disease. Povidone suppositories are used for the treatment of vaginitis and cervical erosion, and have a certain antiviral effect. The drug is a vaginal built-in medicine, non-sexually active people, the first trimester of pregnancy and allergic to the drug is prohibited. Generally 7 days for a course of treatment, if necessary, the next menstrual cycle to repeat the medication, the use of drugs need to follow the doctor’s instructions, the use of the drug need to be alert to allergic reactions, fever, muscle pain and so on. Interferon vaginal suppositories are used for the treatment of cervical erosion, vaginitis, excessive leukorrhea and so on. There is an antiviral effect, can inhibit the reproduction of viruses, promote the healing of the surface of the erosion, the use of the drug is vaginal built-in every other day, no sex, pregnancy, lactation and children are prohibited, the use of the drug may appear vulvovaginal redness, swelling and tingling, and other adverse reactions, the specific use of the medication therapy need to comply with the doctor’s instructions. Both can be used for the treatment of cervical human papillomavirus infection: you can start from the third day of menstruation, the night to use pauwencang suppository, the next day with interferon, the two drugs are used alternately, menstruation on the suspension of the use. Use for three months, stop for two months, go to the hospital for review. Specific methods and courses of treatment need to be clearly diagnosed according to the doctor’s instructions according to the patient’s condition, the use of drugs during the ban on sexual intercourse, the emergence of adverse reactions in time to consult a doctor, should avoid self-medication, in order to avoid delaying the condition.