How long for allergen to affect baby via breast milk?

[beckington]

I'm trying to figure out if my 15 week old is allergic to something. He is exclusively breastfed. How long does it take for something I eat to get through to breast milk to affect him?

Also, can I bright red bum be a sign of an allergy? I know about the red ring, but this is on his bum cheeks and up in his thigh creases. (He also has the ring, but that's always there.)

THanks!

[TStudies]

I see symptoms in my child 2-4 hours after I eat the offending food. 

Message me and I will give you info on my  NAET blog...it has changed my son and my life in regards to our allergies. 

[teraze]

My son is sensitive to dairy.  When he was a week or two old, we started noticing hives immediately after he nursed.  Knowing dairy is a most common allergen to infants, I cut that out and the hives immediately went away.  He never had blood tinged poops, but would at times have mucus present.  And he was really gassy, although I thought that was sort of normal.  

Fast forward a few months...a few weeks ago I ordered a sandwich and cheese was present.  I swallowed a whole bite before noticing I ate cheese.  I breastfed my son and there was no question he reacted to the dairy - he *screamed* and cried.  Heartbreaking.  From eating the cheese through to him breastfeeding, probably 2 hours had passed.

I'm treating that bite of cheese as a food challenge.  At least now I know he's still sensitive.

So yes, it sounds like something you're eating is bothering him.

Don't know about the red bum though.

Good luck to you!

[Sandrine]

It takes my ds about one to two nursing sessions before he reacts.

[beckington]

Wow, I didn't know it could be as little as two hours! That surprises me, but good to know. Thanks everyone!

[etsdtm99]

my youngest would react at about 24 hours - (when she was tiny, if i had milk or cheese - 24 hours later she would projectile vomit) seemed weird to me that it took so long with my other kids it was more 4-6 hours ..

[kjbrown92]

My DS was 24 hours after I ate the offending food as well.