Guessing my hematoma was smaller than yours, and it was dissimilar from yours in that it was on my pec and from a bad aas im injection. (bad aas and bad-ass lol) Also, the problem was too high concentration, not bacterial.
I joked about it at the time ... I did not have any
post injection pain ... I had
during injection pain. Burned like boiling battery acid, but I was determined and finished the shot. Can't remember, but it was probably only 1.0ml, cause I was being "cautious"
.
Turned black within hours, about one inch across, "tender," but the searing pain was gone quickly. Still scared me, so off to the doctor I went a couple of days later (a surgeon my wife knew). I had been thinking about trying a diy needle aspiration, but I had an "in" for a quick appt so I went that route.
He took a quick look, said "just a hematoma, leave it alone, it'll be gone within 2 weeks," and it was. YOUR experience sounds like it involves more tissue insult than mine did, plus it's down there by your happy parts, but this, fwiw, was my experience.