I've been sick with this terrible cough for a month. Most days I cough to where I get sick. I've taken OTC meds but they don't help. I've done ds breathing treatments and they don't help a lot. I so have some antibiotics that I got back in feb that I didn't finish, would that help this cough? I have no insurance so can't go to doctor. Any suggestions!? I have a big event coming soon and can't be sick for it!!