Mine is always on the right side. On so close to the inside of my leg. I also have pocs and shave ! They also tested for herpes but was negative . I think its just a cyst. Not sure why we get them but it sounds like the same kinda cyst as pocs. I only started getting the exterior cysts in my 30s. My body just seemsto be slow functioning /healing. I say don't take antibiotics. Your body will heal even if its slow Or you might end up like me with an almost incurable yeast infection. An trust me. That's way worse. You need your good bacteria more then anyone. Use salts. Hot bath.. tight undies. Its good to keep track of how quickly you heal an work on boosting thatimmune system.