Help Confused about medications?

I have Lymes, Ehrlichiosis and Babesiosis, I have been being treated by my LD with Bactrim, and Cedax, since aug 2008. Then after four months he took me off Cedax and added Malarone along with the Bactrim. I am now developing a rash from the Bactrim I know it is the bactrim because when I stopped taking it my rash went away. I am waiting for my LD to call me. I am still taking the Malarone. My question is this,I am reading that Bactrim doesnt go after the Lymes so If I have Lymes disease also why am I only treating with Bactrim and Malarone. I mean this has been the same since Aug 2008? I do feel a lot better since then but what about the Lymes disease? Does it just go away? This is crazy now I am worried.