The pessary should be inserted about 10cm into the vagina, mainly into the posterior vaginal fornix, and preferably before going to bed, because the medication does not melt immediately after being inserted into the vagina, if it is inserted during the daytime, it may cause the medication to be discharged outside the vagina due to the activity, so it will not play the corresponding drug effect and will not play a therapeutic role in the disease. Therefore, it is recommended to clean the vulva before going to bed at night, lie down on the bed, and then insert the pessary into the vagina, about 10cm, the drug will melt under the action of vaginal secretions and body temperature, and diffuse in the vagina to play a sterilizing effect. During the medication period, it is important to keep the vulva clean and not to have sexual intercourse, so as not to reduce the effectiveness of the medication or infect new bacteria.