When my daughter turned 1 we found out she is anaphylaxis to peanuts. can she out grow the allergy? when should she be tested again? she is 3 now.

Perhaps, but may be : Lifelong. I highly recommend you follow up with your pediatrician to get involved with a pediatric allergist who can assist with your child's allergy. I would also make sure you and your child's caregivers at daycare/school have access to an epi-pen and instructions how to use it. Medic-alert may also be advisable.

There may be hope: We used to think that children never grow out peanut allergy. It turns out that a significant minority of children does outgrow this allergy. I assume that you have made sure that she does not eat any peanuts so far. Therefore, first you should see an allergist.An allergist would proceed with an evaluation that would determine if she is still allergic and make appropriate suggestions.