I am finishing up a 12 week cycle that included prop and tren daily injections. I have been rotating injection sites so each site gets 6 days rest before the next injection. Things have been going well with the cycle but about 2 weeks ago I had a glute shot that bled more than normal when I removed the needle. I aspirated so I was not worried about it. A few days later I noticed a lump the size of a marble about an inch deep in my glute. It was never very painful or red but the mass is still there. Is this an abscess or anything I need to be worried about having drained? Or is this something that will just shrink away after some time?
Thanks.

Stats:
Age - 29
# of cycles - 3
6'3"/230 pounds/11% body fat