Same experience. My wife ate extra peanut butter while pregnant and nursing (offtopic but maybe relevant), and we tried giving my daughter the tiniest dab of peanut butter very early, and the reaction was nuts. We watched with rising panic as the inflammation started at her mouth, traced down throat and chest to stomach, and spread, in what seemed like real time.
She is 3 now has to have an epipen ready to go. 2nd girl: no issues at all - same house, basic maternal diet, vaccine schedule, etc
Same here, nearly killed our son at 5 months with a few crumbs of peanut butter cookie. Other kid no problem. Really seems like there’s more to it than simply early exposure.
Adding our horrific experience here too. Gave our baby a little bit of peanut powder at 7 months. About 2 hours later, vomiting like crazy, turned about as grey as a rain cloud, rushed to the ER blowing through stoplights.
We have never been so scared in our whole lives. Facing the very real loss of a child due to your own hand is a thing you never want to go through. I unreservedly have some good trauma from that experience. Took about a week to get back to normal, the dehydration was so bad and they could not get a vein for IV fluids.
We carry an epi-pen everywhere now.
Fun Fact: Allergy tests (IgG and skin prick) have a ~10% false negative rate and a ~50% false positive rate (!!!).
Adding to this list here as well... momma had peanut butter and jelly sandwiches nearly daily while pregnant and breastfeeding, and yet my son's first exposure to peanut butter as soon as he was able to safely have solid food showed he was allergic.
As with all things it not a panacea. The studies only see that peanut allergies decrease with early exposure. However, there always some kids that will have or not have allergies in both groups.
She is 3 now has to have an epipen ready to go. 2nd girl: no issues at all - same house, basic maternal diet, vaccine schedule, etc