My vagina was itching for some days and now it's burning. it feels like it's been cut by something. labium minus is the part where it itches and burns?

Vaginitis: Vaginitis could be caused due to changes in normal bacteria (bacterial vaginosis), yeast infections, or trichomoniasis. Only the later is sexually transmitted. Clinical findings may suggest a particular diagnosis. A pelvic exam and some testing would be needed for further evaluation. Empiric therapy should be avoided because of frequent misdiagnosis and inappropriate therapy.