I am looking for some information about symptoms of a dairy allergy/intolerance. My son started showing symptoms of a dariy allergy/intolerance from birth-he was a very colicky baby and I noticed around 6 weeks that it seemed to be worse when I ate dairy products. At around 2 months he began to have blood in his stool (his poo had always been very mucousy as well). I stopped eating dairy completely and noticed an improvement. I was told by my dr. that it was likely he would outgrow this and that it could improve once he started eating solids. DS is now 9 mths, and I have started eating small amounts of dairy again recently. Although his poos are still normal, I have noticed that he seems to have a rash on his back and belly frequently, and that he has been quite restless again throughout the night. I am not sure that this is connected to dairy, but am wondering if anyone has any experience/thoughts about this. My specific questions are : Does anyone know how long it takes for dairy protein to enter into breastmilk, and then into his system? Is it possible that his poo can be normal, but that the dairy is affecting him in a different way now that he is older?

I have stopped eating dairy again, but know that it can take a few days to rid my body of it completely. My dr. suggested trying to feed him a small bit of cheese/yogurt, but I am afraid to do so in case it causes a bad reaction.

Sorry for the long post! Any info would be so appreciated.