Probably not: If she's been on a formula for 4 months and has not developed any symptoms, why would she be allergic just because of staying on it for that long? I strongly doubt. If there's more to the story, please let me know.
Answered 11/16/2011
6.2k views
Symptoms?: If she has not demonstrated any symptoms after ingestion, then it is unlikely that she is allergic.
Answered 11/24/2011
6.2k views
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