S.F.
Alison, our son, now 3 and a half, had the same allergies as an infant. I breastfed him, but supplemented with a similar formula, called Neocate. We also received samples of elecare, it's similar to Neocate. The formula is very good.
When your daughter gets older, she can drink rice milk. Our son outgrew the dairy allergy a year ago. He still prefers the rice milk to regular milk, belive it or not. And the rice milks are enriched, so they provide the same nutrients as regular milk. OUr son is still allergic to egg and soy. Food allergies are complicated, but there are alternatives for her to eat as she gets older. YOu'll become an expert at reading labels ......As for the second part of your question, probably best to check with your pediatrician....
Best of luck to you,
S.