Whey seems to be the problem...

I have posted in recent blogs about Luke and his allergies. We knew that he was allergic to eggs and cow's milk but he breaks out to some other foods. He can eat the lil crunchy puffs cheddar cheese without breaking out in hives but he ate the tomato flavor and broke out in hives. So after doing some research I found that the tomato puffs have whey powder in them but the cheddar cheese did not. Tonight we made mac and cheese for the kids and Luke ate a few bites and he broke out in hives....guess what...the mac and cheese had whey in it. Apparently there are two proteins in milk that causes allergies and whey is one. I don't think he is allergic to the other protein caseins because he can eat sharp cheddar cheese and not break out (which is why I tried the mac and cheese). FYI: Hard cheeses like cheddar do not have whey in them because the whey is the watery part of the milk which is pushed out when cheese hardens like cheddar. I guess I will become a label reader. He is still allergic to eggs so he is limited in what he can eat. Although the food thing is frustrating...Luke is having so much fun. In the past week he has developed a love for walking. He is walking all over the place with no assistance which make playing outside so much fun because he doesn't scrap his knees. If anyone has any information about whey or egg allergies I would love to get more information so I can make sure that I am giving him the correct foods.