Cyst/abscess not growing but still here after 2+ months
I first noticed pain in my rectal area in late April. No visible lump but I felt somewhat of a knot beneath the skin.
A few weeks later it had become painless and looked like a pea-sized pimple that had broken the skin. Within a few more weeks, it started to drain pus. It has stayed in this state for about a month: painless, resembling a whitehead pimple, not growing or shrinking, and occasionally draining pus.
Had it checked at urgent care and it was diagnosed as a rectal cyst. I was prescribed antibiotic pills and an antibiotic ointment, but I'm finishing the course now and still nothing has changed.
Does this sound consistent with any of your experiences? Does it sound likely to be an abscess, one that could develop into a fistula? Or something else?