I took cipro 500 mg just this past thurs Sept 25/2008 only 3 pills. One thurs lunchtime, one that evening and then another fri lunchtime. By Friday morning I was starting to experience a sore throat and flu like pains.When it came to that evening my throat had red really red blisters and swollen glands. I didn't take that pill friday night. I stayed up all that night and at 4 am realized my sore throat and swelling had subsided. I called my pharmacy Sat. morning and told them what I had experienced. They said I did the right thing. I then had to contact my doctor to get another RX for my kidney infection. I have since had pain that hasn't went away. I have had a ultrasound on sept 9 and bloodwork on Oct 1 and a CT scan. All tests were ok. I was told just now on the phone to finish the new antibiotic and then 48 hrs later get another urine culture. I had to be given pain relief patches from the doctor.