Leukorrhea grade III is generally a grade III leukorrhea, which often suggests inflammation. And bacterial positive generally suggests the presence of bacterial vaginosis, the patient may have increased vaginal discharge, itching, burning sensation and other symptoms, you can follow the doctor's instructions for topical metronidazole suppositories, tinidazole suppositories and other drugs, through the vaginal administration of the treatment. You can also take oral metronidazole tablets, tinidazole tablets and other medications to treat, can inhibit the growth of anaerobic bacteria, so as to reduce the symptoms of vaginal infection.