Burning at vaginal opening

I have had burning at the vaginal opening for a few weeks now, and really have no idea what it could be. I have been tested for all STDs including herpes, all of which have come back negative, so no possibility for that there. I first noticed problems since my last urinary tract infection at the end of January, when I felt like it hadnt completely cleared up. Then for the past few weeks I had felt burning in the urethra before and after I urinated (not during) and burning around the vaginal opening when I urinated. This burning feeling around the opening would last up to an hour after I urinated and then go away, until the next time i needed to urinate. I went to the doctor's last week, and while they saw no inflammation or anything out of the ordinary they did see what looked like yeast when they looked inside me. I did a 7 day treatment for yeast infection, and since I had my period I used tampons so I could use the cream. My symptoms greatly improved; my urethra no longer burns but it still does slightly around the vaginal opening, and the feeling lasts about 10 minutes after I've urinated. I am wondering if this was just irritation from the tampons, or if it could be something else.. I'm thinking bacterial vaginosis, even though I have had no discharge. I'm just very confused as to what this could be, and so frustrated with having it gone on so long. Any help would be appreciated

[sweety79]

I had that type of buring with bacterial vaginosis, so it could be that.