I actually just joined so that I could reply to your post.
I am 20 years old, and have Cystic Fibrosis, and also have Diabetes and Asthma (diagnosed at ages 14 and 6, respectively), which are complications. I was diagnosed at birth, but my case is also classified as "mild".
I lead a fairly normal life--I go to college and live at school, have a social life, have a boyfriend, etc. I also really enjoy dance, and it is a good form of exercise, so I can clear mucus.
Right now I'm on quite a few medications--but that is normal for any person with CF. These include inhalers, insulin, antibiotics, pancreatic enzymes, prilosec (to help with digestion), vitamins, and some nebulizers that help break down mucus. I also use a vest twice a day to help clear mucus, although my parents did chest PT until I was 16. Twice a year I receive IV antibiotics.
I think that my best advice would be to make sure that your daughter does all her treatments and medications faithfully, but otherwise to help her live as normal a life as possible. Try and treat your daughter in much the same way you would treat a child who wears glasses--follow your doctor's advice for what is best for your child, but make sure your daughter knows that she is just a little different--not "sick" or "weird". It's best if both you and she understand CF as much as you can, and that both of you are frank and clear when explaining it to others. The more comfortable you are explaining CF to others, I've found, the more comfortable you become with CF itself.
"Normalizing" regimen is also important. Make it part of a routine so that it's easier to remember (I like to take all my pills, including antibiotics and other nondigestive meds, at meal times, with my enzymes so I remember them). During nebulizers or chest PT, your daughter can do other things as well, such as watch TV, do homework, or do other things. That way she might not feel like she is missing out as much. For instance, if she decides to do her homework while on her nebulizer, she won't be missing more time than she would have anyway to play with friends.
It's important for CF patients to get exercise--but it doesn't necessarily mean they have to go on a treadmill every day. Have your daughter do something that she likes and is fun for her--sports, swimming, dance (my personal favorite), etc. Not only does that not single her out as "different," it is an exercise regimen she is more likely to stick with as she grows older.
As far as nutrition goes, there are also ways to make eating more fun and more fattening at the same time. For instance, drinking whole milk instead of skim or 1% already adds more fat and calories to a diet without significantly changing it. Adding peanut butter to favorite snacks also can really help with caloric intake. Eating can become very frustrating when you have CF, since you constantly have to eat more than is normal and very often it leads to diarrhea. The key is to make eating fun, rather than making it a duty. Find foods your daughter likes and then try to find ways to make them higher in fat and calories (adding nuts to yogurt, for instance).
I'm not sure if you have other children, but if you do, it is important in the midst of all of this not to forget them. I have one older sister without CF, and it was very hard on her growing up. Lots of times younger children don't understand the needs of a sibling with CF and grow resentful of the extra attention they receive. It's important to make sure they know they are loved just as much as your child with CF.
I'm sorry that I am so long winded, and I hope you weren't overwhelmed by this. Please email me if you want to discuss this more or if you have any questions. My email is OZb11kmf@aol.com. Good luck!