Goats' milk for 9mo?

[MegBusset]

DS has started coming up in hives when he comes into contact with anything with cows' milk in. Is it OK to use goats' milk when cooking for him, which might be less reactive?

I'd try it and see. My DS gets bad tummy pains and wind from cows milk, but seems fine with goats - he's had it from about 10 months to now (21 months).