Eliminating Dairy, Egg, and Gluten Cured Eczema

My husband has suffered from eczema on his hands for many years and it seems to be spreading and getting worse each year. The unsightliness of his hands is one thing, but the itch and pain that comes with it makes him a very grumpy person every time there is a flare up, which was getting more frequent also. He use to just put cortisone cream on it and it would relief him, but then the cortisone is not doing much for him anymore and the red and tenderness of the hand just never disappeared. I tried everything I could to rid him of the problem from the inside out. I supplemented him with fish oil, multi vitamin, vitamin E, probiotics, with not much improvement. I would also put fish oil topically on his hands when he has a flare up and coconut oil as lotion, which he says does work a bit. Then I started to cut out red meat from his diet and see if that helped, since I read something about psoriasis and eczema caused by pork consumption, well, that totally did nothing for him. Then I even put him on a chlorella and cilantro detox, thinking to eliminate some toxins might help, which also didn’t do much for the eczema. Finally, I read about cutting out major allergens like egg, soy, wheat, dairy, etc. But to eliminate all these common allergens for a long period of time and then reintroducing one by one seems like a lot of work and a very limited diet. I really don’t want to resort to this and cut out unnecessary food items. So I bought him a blood test kit for allergy test, hoping we could get some clues there. The allergy test tested for antibody Immunoglobulin G (IgG) for delayed onset food allergy, which is usually associate d to chronic immune problems like eczema. Probably many people have delayed onset food allergy and don't know, this makes me feel like getting myself a test too, but I have this extreme fear of poking myself for blood, I'll need more time to think about it. My husband ended up super high on dairy, egg, and certain other non common allergens, his was also showing moderate allergic to wheat and peanut. These were food that he love and eat every day. We thought he was eating a healthy breakfast with whole wheat toast with cheese and egg and a cup of yogurt. I immediately cut out these food items from his diet, and after 3 days, we saw significant improvement with his hands. We were shocked, thinking we definitely should have done this a lot earlier. He has had no major flare ups so far, still some little ones here and there, but that is partly because he has a hard time completely cutting out these food items. These major allergens are sneaky and in almost all of our processed food. He would eat a piece of breaded chicken thinking that it is okay since he is not that allergic to wheat, but he forgets that the coating might have egg in it too. He would eat a salad, and forget that ranch dressing has dairy. He would eat Asian food and think it is safe, but didn’t know that soy sauce has wheat. The list goes on. I am hoping that if his body takes a short break from these allergens and we start to eat more raw food, that his body would have a chance to repair and improve, and maybe he could one day eat these food again. But then again, we all know this is not an easy trip. However, I now strongly suggest anyone with eczema, psoriasis, chronic fatigue, irritable bowel, etc. to look into allergy testing.