Vaginal itching and burning. Helpful.

I have been suffering from vaginal itching, burning and very small rashes around vaginal opening for 4 months now. I have been to 2 doctors so far. On November, The first doc gave me Cansoft-Cl vag supp for 3 days. After using that i was better ...then i travelled for a week and again the itching came back ..i told the doctor and she prescribed T fluca 150 on day 1,4,7, Tab allegra 120 once at bedtime for 3 day. Nothing happened using the meds. After a few days it was okay. Again after few days it started itching ...the symptoms was coming and going. In Jan 11th i went for a road trip and there it started again. When i came back i visited another doctor on 26th Jan. She prescribed Florita once daily for a month, Fentigliv vag supp once every week for 6 weeks and Canditral 200 twice for 2 days and Candiderma ointment. I have seen not a single percentage of progress using these meds. I don't know what to do...i am suffering from long. If anyone can help me it would be very helpful.