Suggest Medication For Vaginal Fungal Infection

hello, I am suffering from vaginal fungal infection. For the last 1.5 year I am taking so many medicines....in the early stage I had itching in the vaginal area and in the back portion also. I applied so many creams like surfaz SN, Candiderma, topaz......used fungal powders also....ate ecoflora capsules, celica 500, multivitamins, I inserted CANASOFT CL capsules also and betadine passerines too. the doctor took my HVS for test....when the treatment stoped again it started.....I m really fed up now...pls tell me what to do...my doctor says there is some infection in my body....now she has told me to get dental checkup...may be the infection is arising from there.?????She says there is no immunity in my body.