One morning after having sex I woke up with a sore on my outer Labia. I was having a lot of discomfort as well so I went to the doctor. The doctor said I had a UTI and put me on a prescription. The sore went away after I was done taking the medication. This was a few weeks ago, but yesterday morning I woke up with the same sore in the exact same place as last time. It's only one sore. Do you think that I could possible have genital warts or herpes?