Interferon has antiviral, antitumor, and immune modulating effects, so it is most commonly used clinically to treat acute and chronic viral hepatitis, human papillomavirus infection, and other diseases. There are two types of interferon: intramuscular and topical, and the price varies depending on the manufacturer, region, and specifications. 1 million units and 3 million units cost about$20 and$40 a piece, respectively, and some imported interferons may cost several hundred to a thousand dollars a piece, with large price differences. Interferon can play an effective role in improving both high-risk and low-risk HPV infections by regulating immunity, which can effectively prevent cervical cancer and treat condyloma acuminata. It is recommended to choose a regular product, sufficient course of treatment, qualified dosage and correct usage under the guidance of a doctor in order to achieve the best treatment effect.