I had a reaction to a bite (not sure what kind) that caused me to break out in a rash. One place blistered and looked burned. I went to the doctor and received a steroid shot, an antibiotic shot and a tetanus shot.I was prescribed a steroid pack and an anitbiotic. Today would have been my last day to take the antibiotic (10th day). A couple of days ago I started breaking out in a rash on my back, around my breast, my armpits, and around my stomach area. I am itching like crazy. Is this a reaction to the medicines or should I go back to the doctor to get this checked out? Thanks.