can milk allergy cause internal damage?

[Comma2]

DD2 has a milk allergy but sometimes sneaks a sip from DD1's cereal or cocoa. Nothing happens so I'm not too bothered (her last blood test wasn't very bad), but when I had a colonoscopy done recently, some nurse told me she did them for kids that have milk allergy, and that the milk makes no reaction outward but a mess inward? Does anybody know anything about this? Our next appointment whith her allergist isnt' till end december.

No expert at all - but ds1 has a cows milk allergy and was only diagnosed at 21mo, which apparently resulted in inflammation. Ten years on, all if them df, he has something more akin to IBS alongside his allergy, which we've never really got to the bottom of. Remember there are varying degrees of "being allergic" as it were, but watch out as these can change suddenly and without cause or explanation.
I doubt whether I've answered what you need to know, but didn't want to read and not post iyswim!

Not sure really but I do know that many coeliacs can have little or no outward symptoms yet a gastroscopy and biopsy will often show significant damage to the lining of the bowel so I assume it could be the same with milk allergy. I do know that DS's undiagnosed allergies caused his oesphagus to become irritated when he was a baby leading to prolonged reflux. I also agree with MrsShrektheThird about allergies being very unpredictable.

Yes, it can - DD has a milk allergy and it was diagnosed because she had blood and intestinal tissue mixed in with her poo. It doesn't always though.

Oh no. Hm. Better be more vigilant then. I hope she's fine? It doesn't give her weird poo, but who knows what's going on on the microscopic level, and also it's not like she's swilling the stuff down by the bottle.

Her blood test 5 mths ago came back borderline okay, but the doc said to still hold off. Sometimes I think milk (accidentally spilled on her by dd1 or similiar, I'm not giving her the stuff) gives her a rash on the skin, but not sure. Not going to test by myself...

(OOOOOH, somebody tell me she'll outgrow all this stressful crap! Nut allergies, too! Ugh.) (Though can't complain, she already outgrew soy, tomato, and eggs and a bunch of other stuff I can't even remember.)