outgrowing PA - could it be?

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My daughter was diagnosed with PA at around 13 months old. SHe had a reaction - hives/swelling of the face - and then tested Class 3 to a RAST blood test. She has not in the past 2 years had any exposures that we know of. She was recently CAP RAST blood tested and her peanut allergy came back NEGATIVE!!!! She was tested for other things too - shellfish, tree nuts, etc. The doctor is now going to do a skin test to verify this. She had excema as a baby, only on her legs in the winter...she is NOT allergic to anything else. Could this be? I try not to get too excited, but then I think..could she be the 10-20% that outgrow it. BTW, the doctor was NOT going to skin test her based on her Class 3 score 2 years ago, but decided to blood test her for peanuts b/c we were testing other things...As soon as it came back NEGATIVE, she said she definitely wanted to skin test her...Anyone know of anyone who has positively outgrown peanut???

On Mar 6, 2002

YES!!!! Dr. Sampson and colleagues recently reported in a research article that in children like yours (who have never experienced anaphylaxis and were diagnosed at a very young age, etc...) about 20% of those children would actually outgrow this allergy spontaneously!! [img]http://uumor.pair.com/nutalle2/peanutallergy/smile.gif[/img]

I am hoping with all my heart that this is true!! (with a negative blood test, I would go for it [img]http://uumor.pair.com/nutalle2/peanutallergy/biggrin.gif[/img])

On Mar 6, 2002

Oh, Corvallis MOM - thank you for your note. I just think this could be a miracle...but as I stated...I get so scared to think it may be true. Thank you for your words of encouragement...I will keep the boards posted with the results of her skin testing later in March!!

On Mar 6, 2002

ks65,

Thanks for sharing this, and I'm glad your allergist is doing another skin test first.

I'm doing a bit of research on Cap Rast tests and how accurate they are.

I can't wait to hear the outcome. I'm thinking of giving my son a Food Challenge but I want a skin test done again, then more statistics from my allergist as to how many actually pass with scores like my son's.

Keep in touch and Good Luck with your daughter's skin test!

On Mar 6, 2002

corvallis mom- do you happen to know where I can find the article from Dr; Sampson re: spontaneously outgrowing PA. Also, thanks for your "medical" advice on whether the skin testing was an "exposure"..i think i may ask the allergist to delay skin testing for peanut allergy (even thought the CAP RAST was negative) b/c I know that during pregnancy and b-feeding I did NOT expose him to peanuts...so I want to wait as long as possible to "expose" him. I think she wants to skin test wheat and egg though!!

On Mar 6, 2002

This is discussed in "The Peanut Allergy Answer Book" (which I found very helpful). I've seen it in other books, too; probably based on the same study. All the kids who outgrow it seem to meet the following criteria: first reaction at a young age, no subsequent exposures, mild reaction to allergy testing, and no anaphylaxis. We have a neighbor who outgrew his. We don't expect our daughter to; her skin test and CAPRAST were very strongly reactive.

I hope you are one of the lucky ones!

On Mar 6, 2002

My gosh! I'll be waiting with great interest and hope that your little girl has outgrown PA. Her story is PRECISELY the same as my son's. His first exposure/reaction to PB was at 13 months. He only got hives on his face, and it was cleared up with Benadryl immediately. As an infant, he had eczema only on the backs of his knees and tops of his feet. It was completely resolved before age 2. He tested 2 1/2 to peanuts only - no TNA - on the CAP RAST test at 14 months, and has had no reactions for the past 2 years. At his 3 year exam next month, I'm going to ask his Ped. to refer us to the Allergist/Immunologist for another CAP RAST. Good luck!!!!

On Mar 6, 2002

What is considered "a very young age"? My daughter's first exposure and reaction was at 16 months, is that young enough? She has actually gone almost 4 years without another reaction, so I wonder, too, if she outgrew her allergy. I have read on other posts to have her take a CAP RAST first, which I would do before I'd do a challenge. But then I have also read people who took the blood test thinking maybe the allergy is gone, and then the results come back very high! That would be discouraging.

ks65 - since your blood test was negative, have you thought of an oral challenge? Our doctor said he would not do another skin test because 60% of them are false positives.

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