Managing allergies

It sneaked up on us, this allergy. I gave Faith a bottle of formula this weekend and she took only 2 ounces when her face redened and her lips swelled! She vomitted out the milk twice and the portion of it that touched her skin caused rashes to appear.
When I went to the pediatrician, we were told to carefully watch her diet (and mine as I still breastfeed her). We were prescribed an "epipen" syringe in case she'll have difficulty breathing because of allergic reactions. She can't have any milk or dairy products until further tests, or when she outgrows this. She can't even touch dairy because she might get rashes or even worse reactions!

My family has a history to allergies, but I never thought my own child would have a reaction this young. It was very disheartening to think that I passed a gene or susceptibility to my child that potentially could make her so sick. How's a mom to feel?
... My sister's encouragement - "we manage".
And we will. We'll have to educate her babysitter and our friends who interact with her. We'll have to be careful. We'll have to be prepared, exactly how I don't know yet. But we'll manage.
And we can pray. And we will pray, that she will outgrow this. Even be healed and purged of this allergy.
She'll have her blood tested next month for specific allergens to milk and other foods. So I have a month to pray hard. In the meantime, we'll manage.