Okay, so brief history:
I'm mid 30's. Only had 2 sexual partners, and currently am in a loving, trusting relationship with bf of 8 months. We talk about everything.
In the last 8 months, since becoming sexually active again after about 2 years (previous relationship ended), I have had two UTI's and an infected gland in the groin area. I am currently in the middle of a course of antibiotics for my 2nd UTI in that period.
A couple days ago I developed a small blister on my labia. I also have occasional vaginal itchiness, generally in the entire vaginal area, not restricted to where the blister/sore is. The blister is sore and does not itch. It has a somewhat yellow-ish tint to it. It has not broken open at all or crusted over (as of yet.)
I had asked my BF before we slept together the first time about STD's. We had the conversation. I thought nothing more of it. After I found this blister, I began to feel a little concerned again, especially after the infected gland about a month ago. (which I did see a doctor for.) Anyway, after I found the sore/blister I asked him again, just because I thought I had better make absolutely certain that he was positive he did not have herpes. He was positive. I trust him. I have no reason not to.
However, after extensive research, the only things I can figure this is if it is NOT Herpes is a symptom of a severe yeast infection (due to being on antibiotics for the UTI, which fits with overall itching in vagina, not localized to blister area), OR the common cold sore, which is, I know, herpes, simply the non STD kind. But I've never had cold sores in my life, not even on my mouth.
Blisters/ulcers seem uncommon in yeast infections, but not impossible, especially if you have left it untreated. I was given an antifungal to prevent a yeast infection when I had the infected gland, but I was not given one to take with these antibiotics for the UTI.
I see the doctor Feb. 2nd to review my birth control pill, so I figure I will talk to her about it then unless this gets worse (ie ruptures/crusts over and/or more appear.) I COULD go sooner, but the difficulty is, I have no insurance, thus my options (and money) are fairly limited.
I'm worried about what it might be, but I also feel like it can't be herpes.