Thank you! Great link. I did find out that it is safe to give her!
I have been giving Acidophilus (liquid form with strawberry or blueberry flavor) to my daughter since she was probably a year old, recommended by her pediatrician and yes, after several ear infections. At the time, she was taking massive antibiotics and so, her doctor recommended. I still give her occasionally - she will be nine years old next month.
I found a link that you may find interesting. Hope it's useful.
http://nutrition.about.com/od/nutritionforchildren/f/childrenprobiot.htm
Good luck!