Def DO NOT do that....it usually is a first worry for someone that does'nt know much about cding.
I would tell her....it is not something that unusual.....and you could even show her some threads in the loved ones section ...just take her questions as they come. And tell her you care enough for her to tell her and I hope she will want to learn more. Good luck....be thinking of you.
If she is not famiular with cding....we can help her to see it is not that big a deal.