just a word of caution...don't be surprised if & when she DOES come down with the chicken pox. My CAH-son was exposed at least a dozen times (including playing one-on-one for hours with a little girl who was at her highest contagious state). Then when he was 11yrs old, and the pox weren't even going around the school, he got them...BAD!! There wasn't one area on his entire body larger than 2 inches square that didn't have pox on it! My other son, non-CAH now age 4.5yrs, got the chicken pox vaccine, so he shouldn't get them. The vaccine wasn't available to us until right when my 1st son got the pox.