K.M.
With any allergy the first time you're exposed to the allergen you likely have no response. Each time you're exposed to the allergen the reaction will get worse (that's not true of all allergies though). For example, I'm allergic to nuts. I've been exposed to them and had an allergic reaction to them probably 24 times in my life. Each time the reaction remained the same. I am fortunate that I didn't have an anaphylactic reaction until I was in my late 20's. It wasn't gradual AT ALL. The previous time I was exposed I just had an itchy throat. The next time I was in the ER. So she could be allergic to peanut butter. The reaction your daughter had could be eggs or pb. Was she tested for either? My daughter had no reaction the first time she was exposed to dairy. The second time she blew up like a balloon. The next time she swelled up and couldn't breathe. My suggestion is to ALWAYS have Benadryl and an Epi-Pen with you. We're fortunate that with my daughter's food allergies and with mine we're able to control it with Benadryl but we always carry our Epi-Pens. You can never be too careful. Good luck at the doctor today! I hope your little one is feeling better soon!