Hello. I have 2 recurring pimple by the base of my genitalia close together. They are peppercorn sized. I pinch them with the same amount of force it takes to break a pimple and pus and blood comes out. It is not itchy and doesn't burn. They just a red and the disappear for a while and then come back in the same place. Am I describing a STD or a pimple/ingrown hair? Thank you!