Itching and odor in the vulva is most commonly caused by bacterial vaginosis, and vaginal discharges often have a strong odor, but mixed infections, such as bacterial vaginosis and Candida infection, are not excluded. This is because the pessary treats both Candida and bacterial vaginosis. You can take oral metronidazole tablets for 3-5 days for treatment. It is recommended to rinse the vaginal secretions with 30% of cleanser before inserting the pessary for better effect. If the symptoms of itching and odor do not improve after 3 days of medication, it is recommended to go to the hospital for further examination.