Levaquin and dr appointment

My daughter is 13 years old. In October 2003 she had her right middle lobe of her lung removed. She has chronic asthma and other respiratory problems. She has also has 2 sinus surgeries and 5 sets of ear tubes. After her lobectomy she was on several different antibiotics and we had a terrible time clearing her lungs. Finally in December her Drs. put her on Levaquin. She took her levaquin at night due to some of the side effects listed. I didn't want her in school if there had been a problem. It was like a miracle drug for her. For the first time in months I did not hear her say she was not feeling well, no low grade temps and most important of all...she stopped coughing up phlegm. The Drs now have her on another antibiotic...its working well but some of her problems have slowly returned. She is much wheezier, she has started to cough again and she says she doesn't feel as well now as she did on Levaquin. As a matter of fact she has a Dr. appointment in a week and I am going to ask about using Levaquin again.