fact or fiction... can you react on the first exposure?

Posted on: Sun, 08/06/2000 - 9:49am
brimor's picture
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Joined: 06/09/2000 - 09:00

Is is possible to react to something on the first exposure? I've been told no, but my experience is different. The first time Allison had pb, she reacted. The first time Brianna got stung by bees, she had an anaphylatic reaction. Now I know, without a doubt, that she never got stung before (she was 2 when it happened). I know I was never stung while I was pregnant. So how does it happen? I suppose as far as the pb goes, it could be from when I was pregnant and ate some? If someone could explain this, I would love it hear it. Thanks!!!

Liz

Posted on: Sun, 08/06/2000 - 3:18pm
rebekahc's picture
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Joined: 12/02/1999 - 09:00

I've always heard you don't react to the first exposure either, but my son tested very positive for peanut allergy even though he's NEVER been exposed. Since I'm PA, we have always had a peanut free household and I didn't eat any while pregnant or breastfeeding (obviously). I read somewhere recently that they're investigating the possibility of certain allergies being hereditary. Of course, I can't remember where I read that now.
Rebekah

Posted on: Mon, 08/07/2000 - 7:07am
brimor's picture
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Joined: 06/09/2000 - 09:00

Did your Dr. have any explaination for testing positive with no exposure?

Posted on: Mon, 08/07/2000 - 8:59am
melissa's picture
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Joined: 07/05/2004 - 09:00

My son reacted after his first exposure. It wasn't serious, but he had a reaction. The second time was a little worse than the first. At that time we had him tested and sure enough he is allergic to peanuts.

Posted on: Mon, 08/07/2000 - 12:16pm
Anonymous's picture
Anonymous (not verified)

My son reacted to his first exposure to peanuts but we didn't know it was from an allergy then. We ended up in the hospital that night due to dehydration because he was vomiting so much, we had just eaten ice cream at DQ 30 minutes before the vomiting started. The saying, "you don't react with the first exposure," did hold true to his tree nut allergies though. He ate handfuls of cashews a couple of years ago and nothing happened and then went into anaphylactic shock with only 3 small pieces of them a few months ago. He tested 4+P to all of the above and pistachios and only ate pistachios once...will not eat them again to see if the saying is right for it too.

Posted on: Mon, 08/07/2000 - 12:31pm
KarenT's picture
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Joined: 10/30/1999 - 09:00

My daughters first exposer was while I was pregnant with her and again when I was nursing her. This is the explaination that we were given when she actually injested her first bite of PB and had a reaction. Just like bee sting it is the second one that will get you but it can also be the amount of stings you get at one time.
------------------
Karalot
[This message has been edited by KarenT (edited August 07, 2000).]

Posted on: Mon, 08/07/2000 - 1:07pm
brenda's picture
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Joined: 01/22/1999 - 09:00

What I heard an Allergist say regarding why some people can react to a bee sting the first time they are stung is that there are molecules in nature that are very similar to each other, so the person might have been exposed to a molecule at some point that was so similar to the bee it was able to sensitize them and hence a reaction upon the fist bee sting.

Posted on: Mon, 08/07/2000 - 1:24pm
chasie's picture
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Joined: 07/20/2000 - 09:00

Ok went to the dr. today and this was one of the questions he did answer. He told me, yes he thinks {and others} that it could happen by breastfeeding and when your preg. if the mother eats alot of peanuts and what ever.
In my case I can see it happening to my 2nd son how tested for peanuts. I ate everything and anything w/peanut in, on it and so on.
Valerie

Posted on: Tue, 08/08/2000 - 5:29am
Linda-Jo's picture
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Joined: 07/30/1999 - 09:00

KarenT -- Just wondering, but how did you know your daughter had a reaction while you were pregnant with her? I wonder because I ate a lot of pnut butter when I was pregnant with my daughter and wondered if it was possible for her to react while in the womb. Thanks!

Posted on: Tue, 08/08/2000 - 7:31am
Anonymous's picture
Anonymous (not verified)

Linda-Jo
I don't think that is what KarenT was referring to but I know when I was pregnant with my second son, dairy allergic, whenever I would drink a glass of milk he would be constantly moving and kicking. I remember commenting to my husband that he must love it and now I know that is was probably bothering him.

Posted on: Tue, 08/08/2000 - 1:32pm
Anonymous's picture
Anonymous (not verified)

Chasie - wasn't sure what you meant by "yes your doctor could see it happening by being pregnant..." Do you mean that your son could be allergic b/c you ate peanut things while pregnant and nursing?? I have heard there have been alot of studies done on this but NOT conclusive! My friend ate tons of PB when she was pregnant (being that it is good for you) and her kids are NOT allergic. However, I do believe and my allergist said that if you are prone to allergies (they are hereditary..if the parents have one type of allergy a child is more prone to get a type of allergy) then yes, staying away from peanut butter would be a good thing. For me, b/c my daughter is PA, the statistics show that the chances of my second child having a food allergy (of some sort) are higher. The advice of my daughter's allergist was to NOT eat Peanut products during pregnany, during nursing and try to nurse as long as possible (also, introduce highly allergic foods later than normal). The weird thing is that I had a ton of milk during my pregnancy (my doctor said it is very good for you) and yet, my daughter is NOT allergic to milk/dairy. Anyhow, while I do believe that the studies are inconclusive re: what you eat during pregnancy...I will most definitely avoid PButter given that I already have one PA child....

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