So the other night I was wearing a real tight thong and fell asleep in it. When I woke up I felt a little discomfort but chalked it up to be chafing or a rubbing blister. the day after it started Itching so I then assumed an ingrown hair maybe? Well today, day 3, I scratched it and I think I irritated it because now its puffy and stings if anything touches/rubs against it. I got curious and took a photo now I'm just like what is this..?? Also, not sure if this is important or not, but I've been having a lot of white watery discharge, no smell, no burning or anything like that but it is a lot more than usual. just thought I should mention.
This seems to be irritation due to shaving. If you are really concerned - you can get swabbed for HSV.