Puberty is starting earlier for girls now. It used to be the average age of 12 - 13 but now it's 9-11. My nine year old has been showing some signs of it also. She has been getting acne on her chin from time to time. I've trained her to take better care of her skin and it has been clearing up. I have also heard that young girls that are overweight are more likely to start puberty early. (Of course I'm not saying your daughter is overweight) There is really now way for a doctor to stop a natural course of development. Supressing it would cause more damage than good. It is alarming, but she may just be in pre-puberty and may not get her period for another year.

I did buy my daughter some American Girl books that talk about development but do not mention anything about sex. It also has a lot of good information about skin care, deodorant, hair care, etc. My daughter refers to it often when she has questions (if she's too embarrassed to talk about it) After she reads about it in the book, then she talks to me about.

It's called the "Care and Keeping of You"

http://www.amazon.com/Care-Keeping-A.../dp/1562476661