Allergy to cows milk but ok with formula?

[BeeBee0123]

My 12 month old was ok with normal formula however since starting full fat cows milk she started getting a rash. I swapped over to soya milk and it seemed to go away and when trying cows milk again the rash has came back even worse.

She eats cheese and yoghurt with no issues. So I’m very confused if this is a cows milk allergy or not and if is this even possible or am I missing something?

Just to add she’s was a very upset baby who has never been calm however I always put this down to temperament. Wondering if the formula caused upset however she had no symptoms of allergies.

Just keep giving her formula for now. She might be sensitive to cows milk but when it’s more processed like in formula or cheese then she’s ok with it. Look up the milk ladder.

Could it be that they are reacting but just less so? It does sound as though it might be non-ige CMPA.

I agree sounds like none ige cow milk allergy and she is tolerating a more processed version of it.