strange lump...help

Hey guys,

After I did my inject yesterday, this morning I woke up and as usual I rubbed the injection spot and noticed a big lump. It doesn't hurt, but visually there is a lump. It doesn't hurt as an abcess as I've had one before on my face and it was very painful. I am keeping heat on it every chance I get. Maybe I rubbed it too hard and caused the "lump" I'm not sure but generally an abcess hurts correct? Also if it is an abcess what kind of medication would be good, I can go to the doctor, but i also have some penicillin 500mg tabs left over from a year or two ago. Please let me know. I should also mention I've been doing alot of my shots on my right buttock b/c it's easier for me, I'd say I've done 3/4 over there and 1/4 on the other side, dumb I know but its hard for me to get back there so maybe the injection site on the right is just overloaded with oil?

Are you doing ED shots? If you are, thats a lot in one spot

What the size of the needle. Also, you need to switch up your sites bro.

yeah, sounds like a pocket of oil, i get them on pecs sometimes,...and definitely try not to hit the same area more than 1/wk. .......