For what type of reaction would we take a baby with a food allergy to the hospital?

Food allergies. The problem with allergies, is that it can progress pretty quickly from mild to severe very quickly. My kids have food allergies, and even as a doctor, it scares me! if you are not sure, do not hesitate! get your child to an emergency room as quicly as possible, as every minute counts. Having Epinephrine pens will buy you time as well. Please discuss this with your child's docotr as well.