The pessary can be used to treat cervicitis and vaginitis, but not HPV infection. Both high-risk HPV infection and low-risk HPV infection are recommended to be treated clinically according to the specific situation, for example, low-risk HPV infection caused by genital warts can be treated with laser treatment or surgery. If it is a high-risk HPV infection, there is no drug that can treat high-risk HPV infection worldwide so far, so once a high-risk HPV infection is found, it is recommended to pay attention to it and colposcopy can be done to rule out the possibility of cervical epithelial lesions. It is important to review the infection regularly, as most high-risk HPV infections clear up on their own within a year or so, but 20% of patients may still have persistent infection, so it is important to review it regularly.