Swollen, irritated bottom left labia minora. It was very swollen and irritable yesterday. Today it is less swollen and less irritable, looks like a patch of irritated skin that is the source of the swelling. I can t tell if there are actually any bumps. However, it looks like it could be a cluster of bumps, but i don t know if that is just my raw skin. It looks like there could possibly be one small sore, but i am not 100% positive. However, when I wiped the spot with a tissue there was a tiny spot of pink on the tissue. Discharge is thicker white. Could this be a yeast infection causing a rash? Or is it an STD?