Interferon is a suppository for topical use in the vagina, which needs to be inserted deep into the back of the vaginal vault, and too shallow an insertion may cause the vaginal suppository to melt and flow out, reducing the effect of the drug. Interferon suppositories according to the needs of the condition can be once a day, each time a capsule or once every other day, each time a capsule, in the use of interferon suppositories it is best to clean the vulva and the vagina, you can use warm boiled water or clinician prescribed gynecological lotion, to remove excessive secretions is conducive to the drug and the mucous membrane of the skin in contact with the drug can be better absorbed, the interferon suppositories is best in the evening every night before going to bed placed in the vagina to avoid the daily activities that lead to the melting of the pills out. The interferon pessary should be placed in the vagina every night before going to bed, so that the pessary does not melt and flow out because of daily activities. Interferon suppositories are mainly used for viral infections caused by gynecological disorders, in the use of attention to follow the doctor’s instructions for continuous use of medication, menstrual period can be discontinued, in the use of drugs to prohibit sexual intercourse.