I have had pimple on my pelvic area for about a month or two. I can drain it every day with no pain, where pus and blood comes out of multiple areas (pores) of the pimple. It s is the size of about a quarter. I thought it was an ingrown hair but it doesn t seem to look like any hair is on the area. Once I drain it typically by accident while showering the bump is still there and a bump is under the skin as well. Once drained the area seems hard. What is this? Should I go to the doctor?