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Allergies and intolerances

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Egg challenge - what should we expect?

3 replies

Sunflower100 · 05/11/2008 13:16

dd (21 m) is allergic to egg and at yesterday's appointment with specialist she cam up in the usual big weal. Specialist said however that it was worth doing a baked egg food challenge in hospital.
I thought this was something that happened once the reactions seemed to be getting less. Does anyone know whether this is the case?
Also what should we expect from the challenge? (I have been asked to bake a cake and bring it along) Any of you wise women have any tips about what to bring?

As an aside I am really pleased because they have finally agreed to test dd for lentils and salmon at her next appointment (in 6months)if I bring it in to the clinic. So less scary then trying and seeing at home.

OP posts:
BlueBumedFly · 05/11/2008 21:01

Sunflower - I am guessing you have a skin prick test today? They can give you false positives so I am guessing they want to move onto the next stage to be sure. I am sure they will take it really easy and take the best of care. Best place to do a challenge that is for sure. Have they done blood tests (RAST) yet?

When they tested my DD for eggs they told me to bring along scramled egg and touched it to her face. She was fine but there was no way she was going to let them put any in her mouth.

At the time we were told to use them in cooking but to lay off 'pure' egg. I was told that when you bake a cake the metabolic structure of the egg changes and makes it less of an allergen? Perhaps they want to try your DD on this first as it is a far weaker form than a real egg?

I would bake a nice sponge, something you know she will take a bite of? Does she have a favorite or have you not been able to offer cake?

I have never heard of a lentil allergy? Poor little poppet, what happens?

Which hospital are you under if you don't mind me asking?

williamsmummy · 05/11/2008 22:35

you have been asked to do an egg challenge in a hosptial setting, which is a safer environment than at home.

You need to find out if the skin prick test was for cooked or raw egg.

normally you outgrow the cooked egg allergy first .
I wonder if the big wheal was for raw egg?

They certainly dont go for a food challenge without being confidant that there is a high chance a child has outgrown this allergy.
It costs a lot to book a bed in a childrens ward , an on the safe side they always keep a bed clear in ICU on that day. Which is very rarely used.

A food challenge is still worth considering if it means that your child will have more choice in food, and that it will make a difference to thier lives.
We have been offered a food challenge for brazil nut, as its got a v. low reading, but all other tree nuts are outgrown.
We didnt think this was of any real benifits to our sons life or food choices as peanut is one of his allergies.
However we are going for a baked bean challenge next week.

The food challenge in a hospital setting will involve a canular put in a hand, which is the most upsetting part of the day. So ask for a numbing cream first and come armed with favorite comfort toys and books.

once in a bed, with tv , and show games and toys etc, you will have a nurse who will be observing your child throughout the challenge.
all vitals will be checked before and after, and at regular intervals to make sure there is no reaction.
If at any point there is, they stop.

egg is normally rubbed on side of face , then obs, then 20 min wait. then rubbed on lip, then obs then 20 min wait.
then move on to eating a food that contains a measured does of egg. then obs and waiting and so on, until a large amount of egg is eaten.
This can take all day, and all food must be eaten before they can declare the challenge result.
If your child doenst eat much food in one go, the day does get longer and longer.

I hope this is useful.

Sunflower100 · 07/11/2008 14:56

Thanks Both- very helpful advice. Im still dreading it but would make a huge difference if dd was able to eat cake.

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