I have a very small nonbumpy rash on the inner lower parts of my labia minora and I'm not sure what it is. I highly doubt it is a STD since I am in a monogomas relationship. It itches and burns a good deal but does not appear swollen. Do you think ti woucl be a yeast infection? I've read the causes and they do not really match up except that I didn't shower for 3 days which might have done it? Not really sure what else it might be? Any ideas?