I had sex with my boyfriend 2 weeks ago, and we used a lubricant that I think I'm allergic to. I had really bad burning down below and it resulted in a UTI. I took some medication and it cleared up. Then we slept together again a few days later, without the lube, and the burning/tingling/throbbing continued after. I had been taking ibuprofen which seemed to stop the feeling, but it's now been four days and it's still there. I'm taking medication for cystitis, which has helped too. But now on the inside lip of my vagina there's a small blister (probably half a cm round) which looks like a regular blister. I hadn't noticed it previously and it isn't causing me any discomfort, and isn't sore to touch. I had one probably a month ago just outside my vaginal lips, which released a little blood and some puss, but healed really quickly.
I have no idea what's wrong. We used protection; could it be a latex allergy? Or could it be that I still haven't recovered from the reaction to the lubricant? I wondered if the throbbing could be that I was bruised inside? I called the Drs for some advice and they told me to continue with the medication for cystitis and contact them again if the symptoms persisted, but has anyone any idea what could be wrong?