I don't have CF (my kids do) but I can chime in on the warts comments here ~ I know warts, let me tell ya
I had so many warts on my knee as a kid, we could not count them ~ it covered the entire knee. We tried burning and freezing, neither worked, they came right back. A friend suggested Noxzema ~ we put it on every night at bedtime and in about a month they were entirely gone ~ never came back (been about 30 years now) I've told that story to doctors and most don't believe it, one said it was just a coincidence ~ it's a virus and it just decided then was the time to leave ~ who knows, they are gone so I am happy.
Fast forward to my late 30's when I joined a Tae Kwon Do school. I got a wart, had it removed, got two more, had them removed, got three or four had them removed.... finally wised up and asked permission of the "master" to wear the "special" shoes that only the black belts could wear... and guess what NO MORE WARTS. <b>I am now very careful wherever I go to NEVER let my bare feet touch a surface </b>except for here at home and even that is mainly my own shower. I almost always have socks on. Now that they make you remove your shoes at the airport... I wear socks and sandals so I can just slip off the sandals but still be walking in my socks ~ there is no way I am letting my feet touch the same surface that thousands of others have walked on barefoot. The virus can live on a surface for something like 48 hours. So after I go through security and have my sandals back I hold up my foot and remove that disgustingly filthy sock and slip my foot back into my sandal

~ my podiatrists recommended I spray the shower floor with 50/50 bleach/water so I didn't pick up the virus again (possibly from my husband) I did it for a while but have now stopped, it's been several years (like 3-4) since my last wart issue.
With all my removal surgeries I never once had my foot wrapped up big as an eggplant like Haley mentioned -- just some gaze and tape, and a Velcro top "walker" slipper kind of thing and off I went. One of the surgeries was some sort of chemical that is illegal in the US, but my doctor got it from Canada ~ it caused a big blister to form and when it healed the wart was gone. The other surgeries she actually went in and cut out the warts ~ fun fun fun
