Generally the efficacy of interferon suppositories can be maintained for about 48 hours, so interferon should be used every other day. Interferon suppositories are mainly used for human papillomavirus infection, which does not directly inhibit the human papillomavirus, but inhibits viral replication by causing the cells to produce antibodies, and at the same time, enhances the activity of the body’s natural killer cells, macrophages, T cells and other immune cells so as to play an antiviral role. The use of interferon preservation must be placed in refrigeration, otherwise within 24 hours interferon may be deteriorated, affecting the effectiveness of the drug. Sex and tub baths should be avoided as much as possible during use, and the drug should not be used during menstruation. Interferon suppositories have fewer side effects, but they should also be used in accordance with the doctor’s instructions, do not abuse the drug, usually there will be no serious adverse reactions, a small number of patients will have lower abdominal pain, hidden pain and vulvar itching adverse reactions, if there is a serious adverse reaction, it is recommended to stop the use of the drug in a timely manner and take out the medication, and go to the hospital in time to see a doctor. The drug should be used under the guidance of the doctor, and actively cooperate with the doctor to do the relevant examination and treatment, so as not to delay the condition.