Lump on shoulder, help!

[j martini]

Its not an abcess if it was you would know all about it by now.
I have had the same thing myself its caused by injecting in the same area too often and not injecting deep enough into the muscle belly.
It will go down in size slowly mine took over a month to completely shrink.
Do not be injecting anything into your shoulders until it is gone and in future rotate injection sites.

[j martini]

If you are looking rid of it quickly, what i done was put a needle into the lump and pull back on the syringe i managed to get about 3ml off blood out of it and it went down much quicker.