In my experience removing warts physically hurts. I had 27 on my hands as a teenager. Yes 27. They started deforming my nail beds. I tried lots of things but in the end 6 weeks of wart off, changed every day with band aids finally got rid of them. I tried the psychological thing, but tbh I was too young to understand I think (or I was too skeptical). I was about 15.

I would personally wait until your dd wants it removed. I agree there is a psychological component and if she is resistant to removing it I doubt it will go away.