When I was little, I used to always ask my mom, "Why me? Why do I have food allergies?" Her simple response was that God has something special planned for me, and that I should have faith that He knows what He's doing.
As a little kid, to hear that I am special, changed my whole outlook on food allergies. My feelings of food allergies being a curse were replaced by feelings that food allergies are a blessing--that I'm meant for a greater purpose than just living day by day.