Interferon is used to treat HPV infection. If you are infected with HPV, it is best not to have intercourse, and it is not safe to wear a condom, so you should not have intercourse during the medication period. The reason is that interferon is used for three months, within three months of intercourse may cause cross-infection, wait until after the HPV negative before intercourse. The HPV virus can be brought to the cervix through sexual intercourse and can grow and multiply in the cervix. If the infection continues for more than two years, it will cause precancerous lesions in the cervix, which will develop into cervical cancer if not treated in time. Therefore, once a high-risk HPV infection is detected, one must pay attention to exercise to increase the body’s resistance, using interferon is only an auxiliary treatment, not an effective medicine.