Hmmm... I'm not sure. Maybe you guys can help me figure it out?
I have no food allergies, just a tragic sensitivity to chocolate (gives me migraines). DH was sensitive to dairy when he was a toddler but can eat it without a problem now.
DD was a very fussy baby - she had horrible reflux and we treated her with Zantac. She was born at 37 weeks and had been IUGR so that may have contributed. Later she was diagnosed as being allergic to wheat, soy, and corn when she was a year old. She had a nasty eczema rash that had been around for a little while. We eliminated everything containing these products and their derivatives (boy was that challenging) and by 3 years old she had outgrown the allergies. Come to find out, research has shown a correlation between Zantac use and food allergies! The medication can prevent proteins from being broken down fully and so the individual's system begins to recognize them as foreign, hence the allergy that develops. Interesting.
DS is a very mellow, easy baby. Much different experience. Born at 39 weeks, nice healthy size. He has been gaining very well and thriving. No reflux, rarely gassy. However, he did develop an nasty eczema rash at about 10 weeks. I noticed that it flared up shortly after I started eating walnuts. So, I immediately eliminated tree nuts. It was so bad that I had to treat it with hydrocortisone. The rash has gotten much better - not on his face anymore but it is still on his elbows. We have always used dye and fragrance free everything so I don't think that's the cause. Could he really be allergic to nuts or could this just be a phase like the pediatrician thinks?
I wonder if Zantac CAUSES food intolerances, or if the reflux is caused by food intolerances to begin with and the corresponding Zantac use is just a correlation. All of my DS' food triggers cause reflux, but he apparently has some structural issues too because he still had reflux after all the food triggers I could find were removed.