growing out of cows milk allergy

[squirls]

My son had a milk allergy from a young age and we were told that he would grow out of it by the age of five (it affected his bowels) at the age of 5 and 3 months he could tolerate milk and cheese so he went back on milk. When he was in year 1 at school he complained of joint pain he had trouble processing information and had dyslexic tendancies. I did put 2 and 2 together he was refered to a paedatrician who said take him off of dairy ( this was 5 months ago). I was called into school where his teacher told me that he has improved at an unbelievable rate and has no more joint pain he is now nearly 8.
The doc told me that children don't grow out of allergies the original symptoms can go only to manifest somewhere else (in my sons case the joints)

That sounds terrible - good on you for working out what the problem was.
I will be interested to know whether others have had similar experiences...

We are currently doing a desensitisation programme where DS1 (age 7) has a bit of milk every day, in increasing doses. I do worry a bit about him developing other allergies to compensate, though I don't know if this is a valid concern or not. In our case it's hives/vomiting/wheezing that are his symptoms, rather than bowel problems.

Allergy would be instant often life-threatening reaction, I'd say it was more intolerance as reaction is in bowel, quite far down.
Sometimes these terms are used interchangeably, tho incorrect.
The intolerance is an immune reaction and yes, it can affect joints via autoimmune process.
But do keep watch on things as my ds originally intolerant to dairy improved but subsequently worsened (in terms of years) as gluten intolerance can be a cause of the intolerance too. We stopped gluten and he can now have some dairy with no reaction.

His is a type 3 allergy as opposed to a type 1 where you could have anaphylactic shock.

Whether its intoloerance or allergy the point is that you don't grow out of it, it just changes :)