How can you tell if a Milk allergy/Intolerance has developed into a Soy allergy over time?

My 17 mo. old has always had diarrhea, from mild to extreme, ever since birth. I stopped breastfeeding at 4 mo., soy formula made things better, but it still was never solid. At 1 yr we attempted slowly switching to milk. After 3 days it was really bad and she was very cranky. So next we tried soy milk with no luck. I thought it was very odd that if the soy formula helped, why not the soy milk? We also tried Lactaid with no luck either. So now she has been on rice milk for about a month or so and viola! Solid bm's and no more eczema!

The current problem, which is the main part of my question is...she never had issues with yogurt or cheese (or so I thought) but a few days ago she had a few helpings in one day and the diarrhea came roaring back. Is it common for things to keep changing like this? I hate the thought of her missing out on so many foods. (fyi - she has very little juice, so that is not the cause) Any help would be great!

Answer:
My daughter is a milk allergy, but we did not have a soy problem . She is 23 now and still has the miilk problem, not every time she has milk products, but often enough to stay away from them Even the cheese on pizza sometimes bothers her.Yogurt does not seem to be a problem and when she came off the bottle she would not drink the formula from a cup, so basically she grew up on apple juice. Dr said they get enough calcium in other foods, plus her multi vitamin. You said the yougurt and cheese presented a problem...but maybe only 1 of them was the problem. Next time she eats any cheese make sure she has bno other dairy products to be syre which one is the problem, Good Luck
There is an enzyme or culture in most yogurts and cheeses called acidofilus and it is a PROBIOTIC, which means it helps the body work properly. It aids in digestion and the absorption of nutrients. That is why she can handle a little yogurt or cheese but not alot. talk to your pediatrician about putting her on acidophilus suppliments. they will help immensely.
My 3 year old son has a lot of food allergies too and he also is on rice milk. Make sure to give a vitamin every day too.

You can develop new allergies at any time in your life but its more common for young children under 5. If she has never tasted some foods she won't miss them. My son has never eaten cake or ice cream and he has never paid attention to the fact that he has something different to eat than the rest of us. He has asked once for ice cream and I just told him it would make him itchy. He was ok with that.

The milk intolerance does not make another allergy such as one to soy. Having the body subjected to that allergen makes the body less immune to other allergens like soy. I'm not a doctor but I have been to many allergy doctors with my both of my sons and I also have food allergies. Its all trial and error as I'm sure you have already noticed. Good luck!
One allergy does not "develope" into another allergy. You either have it, or you don't. Sometimes a little won't cause an allergic reaction, but a larger quantity may. And you can start an allergy at any time. If she is having diarherra, that is not allergy, but more intolerance, seems like she has trouble digesting larger amounts of protein. If she is 17m, she doens't really need that much "milk" anymore, mostly should be solid foods. So if she just have a little cheese, a little soy milk, should be ok. Just keep in mind to limit the amount of total proteins she intakes.
It sounds like your child has a very fragile immune system. I have a rare condition called Mastocytosis and your child reacts a lot like I do (not to say that she has that). While one allergy cannot develop into another but it is not uncommon for people using soy and a milk substitute to become allergic to soy as well. Soy breaks down in your body into a substance a lot like MSG (which is actually derived from soy), and the body often treats that as a toxin or invader.

Skin reactions are also common with both milk and soy allergies, so the "eczema" probably wasn't eczema at all.

Read food labels more often. Just about everything processed had soy in it. Lactaid probably has soy in it and that's why it didn't help.

It sounds like your daughter only needs to avoid pure milk. She is probably reacting to the yogurt and cheese because cheese is essentially a block of bacteria and yogurt actually has living bacteria in it. Granted, for most people the bacteria in these things can be fine and even beneficial but some people's immune systems are just too sensitive. I can't eat yogurt or soft cheeses. I don't know if you know this, but also never give your child honey! It has botulism in it. Adults can deal with it but a child can't and it would probably be worse for yours. The good news is that your child will probably be able to have cheese, yogurt, and honey once she is older. She might even out grow the milk and soy allergies as well.

Back to the soy issue, you may have to start making most things from scratch. If it turns out that your daughter is allergic to soy, there will be a lot that she won't be able to eat. Bread will be especially hard to find. In the sources section, I'll put some links about soy allergies and what to avoid but I warn you, it isn't going to be pretty. I'll tell you right now, soda and fast food is almost totally off limits.

Good luck!

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