What Causes A Blister Like Bump Near Genital Area?

A few days ago I randomly noticed a single pimple/blister like bump near my bikini line. I could still wear underwear and it was visible (very very inner thigh closer to the bottom of my vagina) so I was not nervous because it wasn t on my genitals. The blister popped immediately and was painless and I cleaned up the area and let it be. It hasn t bothered me or even been on my mind at all for the past couple of days until today when I picked off a tiny skin color scab type thing. After I picked off the scab It was a little oozy (very tiny bit of clear watery liquid) so I put a band aid over it. Still no itching or pain. I ve done some research and I ve really begun to freak myself out because of the lack of pain/itching. I know herpes tends to come in clusters, but I also read that syphallis sores don t tend to have pain or itching which is scaring me except mine doesn t look like any of the pictures I ve seen online. It s about the size of an eraser head and is kind of dark pink in the middle and gets lighter on the outsides. When I touch it it feels just slightly raised over the rest of my skin. This is also an area I shave with a razor but haven t shaved for a few days and there don t seem to be any hair follicles visible.