If I remember correctly, your daughter is around 12 or so. At this age, I was discussing any medical issues with my parents and then making an appointment, seeing the doctor and filling a script or such. None of this was without the appropriate oversight, but at twelve I had been through the process enough times that nothing was gained by having a parent hear a familiar story. I lived in a small city of 45,000 so everything was accessible on foot or bike.
It struck me that she had a specific list of complaints, very observant of what her body was up to and some sense of concern. The question my parents would ask is 'where do you think this is going'? That usually cut to the decision to make an appointment, possibly call for a particular prescription or do nothing with the doctor just yet.
If the question is whether to keep her home involves staying home as well has similar rules. She's a little old for this but I could stay home any day I wanted. Along with this freedom was the rule that I stayed in bed and only had my school books and such to entertain me. When I was really sick, I had no complaints sleeping the day away.
This is a hard one in CF because most of us have some GI involvement. The last decade and the recent 3 years especially, understanding of how much the gut influences how we feel has been revolutionary. I first read a scientific paper with the eye popping title "The Vagus Nerve Infection Hypothesis". In short the author was tracing the biochemistry of " the sickness response " or the chemical process of convincing the brain you feel sick. This isn't like a nausea response but a potentially deep psychological influence. There's a hundred or more scientific studies published on how the crappy feeling a less than optimally functioning gut as most CFers have, there's an added element that is extremely powerful. It took me time to understand the seriousness of this sickness response. It's sort of like an extremely abusive mate or parent mentally devaluing, causing an extreme loss of self esteem and self worth. Except this is all about the vagus nerve sending an excess of negative feedback to the brain. If there are any problems, minor or more serious, this could lead to suicidal ideation. It's been established to be this serious.
What I am trying to say is at 12, she probably will do a great job of increasingly independent medical management. She's probably going to feel delighted to be trusted and not disappoint you. I type a list of topics, hand a copy to my doctor and be quiet while she/ he reads my complete list. With a few pointers she'll be making useful lists for covering the visit.
I'd ask, what will my presence add? If you have a good reason beyond wishing to care for your baby, take the day off. Personally I was just fine with my doctor without the addition of my parents.
I hope that helps,
LL