Rocephin shot, how long have you taken it for?

I'm just curious if anyone has been given the shot more than once? Not an IV but a shot. I'm going back to my Lyme's doctor and talking about Rocephin since it was the only thing that made my UC symptoms go away even if it was just for one day. I believe there' s something bacterial going on in my gut and colon. I can't find a doctor to listen to me! It's so frustrating!