I Keep On Getting Haloperidol Deconate Shots For 2 1/2years

I keep on getting haloperidol deconate shots for 2 1/2years now and I keep on getting shots every two weeks. I have 7 bumps on my butt and this is really freaking me out that there will be more and what if a bump gets hit? I think that my butt is trying to give a sign that I should not be taking this medication..