Allergist recommendations??

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Just returned home from first allergy testing. It was very enlightening (in a negative way). My ds tested a 4+ for peanut and egg. We knew about the peanut but not the egg!!!! Everything he eats has egg in it with no reaction. I'm confused! Allergist said to continue to give him things with egg in it but to avoid straight eggs. She said he hasn't had any problems and no eczema so it's okay. Was this good advice??

He also tested 2+ for milk, and again drinks several cups a day without incident. Again, she said to continue use if no reaction. He tested positive for several other things as well. 4+ for grass and trees, 2+ for dogs, dust mites and some tree nuts, 1+ for wheat, soybean and sesame.

Me dd was tested for peanut only and was rated a 1+. Dr. says she's not too concerned with her.

Has anyone else been told to give there child milk or eggs if they've tested possitive or do I need to find a new Dr.?

On Oct 20, 2004

That's what I've heard from allergists. The only conclusive way to diagnose an allergy is with a reaction to the food...if you can eat it with no reaction, then practically speaking, you aren't allergic, regardless of what the test says. It's the same the other way around...if you react to something, it doesn't matter if the test is negative, you are allergic.

My daughter was allergic to eggs until age 2...she could eat them in baked goods, just not straight.


On Oct 20, 2004

My understanding was that these numbers you were given (if I am correct in assuming they are RAST scores) are indicators not of the severity of an allergy but the likelyhood of the allergy. My son tested with a 2 for egg, soybean, and banana as well as milk and peanuts. We already knew he was allergic to milk and peanuts but the others came as a surprise. My allergists suggestion was to avoid all these foods for a while and then introduce the ones we had never before thought he was allergic to. We did this and he now eats egg and bananas. When we reintroduced soy his eczema got worse so we removed this from his diet again. He did not suggest ofcourse that we reintroduce peanut or milk because we had seen an obvious reaction to these. Others I have spoken to were told to continue feeding foods that the child never reacted to. These tests have alot of false positives especially in young children.

------------------ Lalow James 3yrs NKA Ben 21 months PA,MA,SA

On Oct 20, 2004

I forgot to mention his tests were skin pricks on the back (34 of them!)

Also, I had a typo in my orginal post...I used the wrong form of there (their). Most of you don't care I'm sure, but I'm a teacher and was horrified when I saw it!

On Oct 20, 2004

Dr. just called. Looking over a detailed list of reactions I provided, she noticed 2 occassions where he mildly reacted to food where peanuts were not involved. She said this could've been the egg. Now she says avoid the things that have egg that he reacts to but keep giving him whatever he doesn't react to.

When I asked about growing out of it, she said avoid all egg if I want him to grow out of it.

Now, I'm more confused than ever!!! Do I continue to give him egg products that cause no reaction or avoid it to get him to grow out of it? I guess avoidance would be best..right? Any opinions?? Thanks!!

On Oct 20, 2004

Just to comment that my son's skin test returned a lot of false positives to foods. We knew he was allergic to PN because of a reaction but he also tested positive to wheat, soy, eggs, and shrimp. I questioned the allergist also since he has eaten wheat, soy, and eggs with no apparent reaction. His RAST tests only showed PN and a little abnormal on eggs. All others were negative.

He has eggs now, but only baked in things. I never noticed a visible reaction, but he only ate them a few times and didn't seem to like them. Don't know if this was because he was a picky toddler or they made him feel bad. He does have mild eczema and I've gone batty trying to determine the cause of it - eliminating this and that. My daughter also had eczema as a child, but luckily has outgrown it and has no FA.

On Oct 20, 2004

Gosh, I am so confused too. I am also new to this. DS (14-months old) tested postive (4) for PA and egg (although the egg was more like a 3, I think). The allergist also told me to avoid anything with eggs in it. Sam has had a TON of stuff with eggs all the time with absolutely no reaction at all. Up to this point, I know he has had stuff with eggs nearly everyday.

We go back in three week so I am going to ask again then. I am so confused!!!

On Oct 20, 2004

Just my opinion but if you think that there is a possibility he is allergic to egg I would avoid it all together.. at least for a while.

------------------ Lalow James 3yrs NKA Ben 21 months PA,MA,SA

On Oct 20, 2004

Thanks for all of the responses. I just gave ds frozen pancakes, which contain milk, eggs...and no reaction. Again, I just think he has an egg allergy.

Sam's mom- keep us posted on your appt. next week. I'll be interested to hear what your doctor says.

On Oct 20, 2004

Sorry that should have said, I don't think he has an egg allergy.

Could this have been a false positive? Has anyone suspected a false positive on a skin prick test?

On Oct 20, 2004

Skosis, did he do 34 pricks all at once? Or did he do it over the course of 3 or 4 different appointments? Our allergist said that you can only do 8 at a time in small children because if the pricks are too close together one can get residue from the one next to it, and can cause a false positive. What do you think? You did not say how old your child is, but I am guessing fairly young? I am wondering if you got false positives because there was not enough space between the different pricks. By the way, my daughter was allergic to egg and we were told to avoid all egg in any form. Same with milk. However she had had reactions to both.

On Oct 20, 2004

My dd has exactly the same allergies as your ds - pa and egg. While she has eaten cakes etc (she actually doesn't really like cake) she has never had a reaction but has had reaction (mild) when eating quiche. Our allergy specialist gave us the same advise - probably ok to eat cakes but avoid anything with 'lightly cooked' egg (poached, meringues, pavlova etc). I have pa (have had it for 40+ years) and have just tested positive to almonds - love them. Again allergist said I could eat them but as they are often processed in the same factory as p/nuts I should be careful (probably best to buy in shell). I suppose all you can do is keep an eye out for any changes or reactions which your ds is eating without problems at the moment.

On Oct 20, 2004

This may not be any help, but here goes-- My son was diagnosed at 11 months with PA severe, and egg not as severe (can't remember the number). The allergist said to avoid blatant eggs -- scrambled or something, but that he could have them baked into cakes, etc. So that's what we did -- no omelets, or the like, but no restrictions on cakes, etc. (all peanut free, of course) He never had a reaction and had completely outgrown any egg reaction at all by age 2.

On Oct 21, 2004

If it helps, my dd is egg allergic, reacting very specifically(and only, as far as I can tell) to icing with raw egg whites.

She had always eaten banana bread, waffles and pancakes with eggs. She did test +, and the number came down significantly, but is still + on CAPRAST and + on skin prick in July.

We strictly avoid, but I have been considering reintroducuing, as her only apparent reaction was to raw, and was skin symptoms at contact sites, very specifically. She did have some eczema patches, but impossible to tell if egg or PN traces, or anything else was the cause. But her skin is pretty great avoiding egg and PN. She is 5 now and dx for egg was 1 year(her birthday cake icing) and PN 18 months. becca

On Oct 21, 2004

Thanks everyone!! Carefulmom, they did all 34 pricks at the same time, and my husband and I suspected maybe the liquids ran together. He was squirming a lot by the end and that was when peanut and egg was pricked. The liquids were very close together. I'm going to check on having a blood test done because I feel very stressed right now. I don't want to avoid egg if it's not necessary, yet I don't want to do him harm down the road.

I appreciate everyones comments, they have definitely helped!

On Oct 21, 2004

Here's some info regarding false positives:

"A RAST test is very sensitive. So, if your blood shows no response to a particular food, more than likely you do not have an allergy to that food. However, this test is not very specific, so if your blood reacts to the food, it may or may not mean you are allergic to that specific food. This is called a false positive reaction. One reason for a false positive result may be the similarities between various food of a food family. For example if you are allergic to peanuts, your blood may also react to other legumes, such as green beans, it is important to discuss the results of this type of testing with your doctor. The results should be compared with the information in your case history and other testing methods to determine whether the positive results are true or false. Between 50 and 60 percent of positive test results are false positives. " [url="http://www.foodaller.....ome.cfm?section_id=4&sub_section_id=2"]http://www.foodaller.....ome.cfm?section_id=4&sub_section_id=2[/url]

"***** skin test, like RAST, can be inaccurate, with 50 to 60 percent of positive test results being false positive. Your test results should be compared with your case history and other tests to determine which of the results are true positives. If your skin did not react, you are probably not allergic to the test food." [url="http://www.foodaller.....ome.cfm?section_id=4&sub_section_id=2"]http://www.foodaller.....ome.cfm?section_id=4&sub_section_id=2[/url]

"If the skin ***** test is negative, there is a 95% chance that you do not have an allergy to that substance. Positives are more problematic; only about 50% of those who have a positive result actually are allergic to that substance." [url=""][/url]

"False positives can arise with even a non-allergic person if the dosage of the allergen is high enough." [url=""][/url]

"People who outgrow a food allergy may continue to have positive IgE test result to the food for many years." [url=""][/url]

Talking about SPT: "A positive test will produce a small hivelike reaction, but a positive result does not always indicate a true allergy." [url=""][/url]

"Like skin-***** tests, RAST tests are prone to false positives, meaning a positive response can occur even when the person is not actually allergic to the food." [url=""][/url]

Unfortunately, the interpretation of positive tests is not so straightforward. Positive tests indicate that IgE is present but do not, in isolation, prove that a reaction will occur upon ingestion of the food. In fact, people who "outgrow" their food allergy usually continue to have a positive test result to the food for many years.

"To further complicate matters, some proteins in foods are cross-reactive with similar allergenic proteins in non-foods (pollen) or in other foods. This cross reactivity can lead, for example, to a positive skin test for soy in a person with peanut allergy, or a positive test to wheat in a person with grass pollen allergy, even though the person has not had symptoms of an allergy to those cross-reacting foods." [url=""][/url]

Hope this helps.


[This message has been edited by BaileyB (edited October 21, 2004).]

On Oct 21, 2004

Skocsis, I think that makes sense. I would definitely ask for a blood test, probably a cap rast. Your chance of a false positive on that is extremely low.

On Oct 21, 2004

Thanks again everyone...I am going to press for a blood test!