Okay so first thing, last week I had what I think was a vaginal yeast infection. I had all the symptoms: itchiness and the white discharge.

On Sunday I did a lot of walking and was wearing tighter clothes so originally I thought I had chaffed my labia, but upon further inspection today I found a tiny round bump/blister on my labia minora. It's not discolored, it's the same color as my labia. But it's sore, and hurts when rubbed against anything.

What could this be?! I was just at the gynecologist in January and have no STI's that I'm aware of or anything. I'm going again this month, but any ideas on what this could be? I've never had this before and I'm freaking out!

What can I do to treat this?