Trichomonal vaginitis can be treated with metronidazole or tinidazole. Metronidazole can be taken orally or used vaginally. Generally, one treatment course, which lasts 7 days, is sufficient. Tinidazole can also be taken orally for treatment. Since trichomonal vaginitis is mostly caused by sexual activity, it is necessary for the male partner to be treated simultaneously. This is because the male may also carry the trichomonas. If he is not treated, even if the female is cured, she can become reinfected during sexual activity. (Please use medication under the guidance of a doctor.)